I think Anddy have a special line whit JK, 😂, I have whatsapp, email, to get the code but now answer. Maybe because is Saturday? Bad choose to make software update on Friday nighr
@@gepettoautomobile Oh, wow, you have set the date and time same as mine when I did the update and the password still worked? So, I can just use the password over and over again if I set the time manually... That's a great find! Gives me something to play with!
@@OffGridGarageAustralia Yes, someone coment with the exact time Stamp, that make my job easy, then I make a loterry because I don't know you Zone, Australia is so big. But I was lucky, and first zone work
@@OffGridGarageAustralia If we have a couple of codes and timestamps as a reference, we can make a code generator so you don't have to mess with the clock anymore.
Found recently this channel. Andy is absolutely amazing and all the tests and reviews and constructions are what I've looked for a lot of time. Not many youtubers show pro and cons and in depth usage tests of these products. So now I've an huge amount of videos to recover, but it's all right. Thanks Andy for your channel, is a gold mine for the solar and off grid communities. Cheers!
@@habana7638 A while back, JK and I tried to fix the bricked BMS without success. JK tried many, many different ways and then finally gave up. Holding the power button was never part of any of their provided instructions.
Great video Andy - I still haven't upgraded mine yet but touch wood it's been up and running for weeks now with no issues whatsoever. Was worrying about flashing the firmware after hearing about you bricking yours but as always you've settled my nerves! Keep up the good work - prost! 🍻
great news but Andy you had a great opportunity to try recording any old version. It would have been interesting to see the result. And only after that update to the latest.
Awesome Andy for your great community support! Keep it up I too recovered from a failed Seplos BMS 10E firmware update too. But I cannot exactly remember the steps I followed :(
I didn't check with Seplos. But I guess below were the steps I followed: 1. removed all battery and inverter cables including sensing wires 2. kept the pack idling for 5 mins or so 3. reconnected cables (without inverter cables) 4. flashed one of the firmware
Again a VERY informative video, Andy. Good to know JK is fast with the code. Something else, i was watching older video's, and looked into your website too. I can not find any information about the NOARK DC breaker and possible add-ons, could you please make a video about it and post these items on your website too?
The NOARK breakers are a bit difficult to get. Even they are coming from the EU, they are hard to get over there as people told me. I made this video here when we built the battery shelf: ruclips.net/video/iZeptultLBo/видео.html And I have them on my website here: off-grid-garage.com/battery-accessories/
If the PC Software calculates the code based on time: we just need the exact time you requested the code / when it was valid and everyone could set the Computer to this date and time for the upgrade
I'm thinking, would they just use the last 8 digits of the Unix epoch timestamp or something. I can't test that since I don't have this BMS, but would be a good first attempt. Andy, up for some trial and experimentation?
@@upnorthandpersonal more like a time based calculation some “seed” I guess. Linux epoch times for every minute from 11:10 AM to 11:23 AM on January 16, 2024, in the Australia timezone: - 11:10 AM: 1642276200 - 11:11 AM: 1642276260 - 11:12 AM: 1642276320 - 11:13 AM: 1642276380 - 11:14 AM: 1642276440 - 11:15 AM: 1642276500 - 11:16 AM: 1642276560 - 11:17 AM: 1642276620 - 11:18 AM: 1642276680 - 11:19 AM: 1642276740 - 11:20 AM: 1642276800 - 11:21 AM: 1642276860 - 11:22 AM: 1642276920 - 11:23 AM: 1642276980 And used code was 14012106
Hi andy Currently building 2 ESS batteries with the PB2A16S20P JK BMS, this week I had everything ready and tried hooking up my 2 BMS to my Cerbo GX so I made a Type A CAN cable and connected it to the CAN port of the first BMS which is set to adress 0 then used the blue network cable to connect the second BMS with adress 1 to the first using the ports on the right. But in the cerbo I only kept seeing the first BMS. Then check alll the settings via the bluetooth on both BMS everything seemed fine. So i bought an USB-RS485 converter to be able to upgrade both BMS to 15.24 firmware started with the slave BMS which was already set to adress 1 and connected it to the BMS monitor software uploaded the firmware and everything worked fine. Then connected the master BMS which I set to adress one also and connected to RS485 connector to the ports on the right. first communication seemed to be working and I tried to upload the newest firmware. But it kept keeping stuck at 0% after that the communication seems to be lost. So I rebooted the BMS and it seemed to start working again but the RED LED is blinking. So i tried via the software to change some settings and that seemed to work most of the time occasionally I got timeout error's. But firmware update still not working. So I tried the method in this video using the force update and the button but nothing happens. So I think there is an hardware issue and I need to contact JK for help/replacement, but first wanted to check if there are other methods.
@@Franky6767 Same here. Did you manage to get this fixed? I have a PB2A16S20P bms running on version 15.24. I am not able to update the firmware with the normal method. The firmware update process gets stuck at 0% and after some time BMS restarts by itself. Luckily it didn't get bricked, probably because the firmware rewrite process was never initiated. During this time the capacity indicator on the display (it's the smaller 2.5" version) goes to 00% and the inverter starts throwing the error 61, which means the communication to the battery has been lost. In this chat, I read someone talking about the High Frequency inverter being ON near to their BMS, causing the forced update failures. I will try and see that keeping the inverter OFF during the update process will fix the problem I am facing.. I don't remember how I did the update earlier - with or without the inverter running nearby. Probably it was OFF. Will try and see.
Andy.... I have enjoyed watching your videos for quite some time. Your skill at picking apart the complexities and explaining it in ways we can all understand is amazing. I have tried to capture your recommended settings for chargers and BMSs but it can be difficult to capture it all from the videos. Do you have a document or white paper that has all the settings you use for your JK BMS?
Just my 5 cents to this topic: I had a very hard day today ... tried an update, it failed, bricked the bms ... and after a few hours of unsuccessful trials to force update, i had an idea: what if some electric device is creating some electromagnetic noise which is ruining the RS485 communication? Turned off all devices (including my laptop's charger) ... and the force update was successfull.
Thank you for posting this. I had my share of misery the other day, tried to update to v15.30 and it was bricked in 5s. The I've tried to force update which always stopped before 40%, tried various cables, in total about 30 times or more. The BMS of the new battery was sitting (for testing) near the inverters (high frequency). Once I've stopped them, the force update finished flawlessly.
already ordered the previous jk bms.. i think of leaving the inverter one for any car modules pack when or if i find !!! but i guess the update repaired some bugs too in yours andy
Andy this is great information, Thank you Could you suggest a option to save all user settings? which would be done prior to any issues as this, then after fixing a bricked BMS we could just reload user setting. this would be a great option that other BMS's do not have. Thanks again Scat
As far as I know, there is no option to save all settings in a file. I would suggest taking screenshots and keep them in case you need to setup the BMS again.
Hi Andy, I have a JK-PB2A16S15P V15. I have a minor issue with the app in that it shows only 1 column in lieu of 2 like it did originally (takes some getting used to). It's OK when I turn my phone to landscape (same with other phone). I thought I would let you know that I tried all your efforts to default the JK but with no luck, I even bricked it & brought it back. The JK came with V15.10, worked OK, immediatly upgraded to V15.11 (tks to you) & now have upgraded to V15.17 still shows 1 column. Cheers.
Hello Andy, I want to install two 48V/280 Ah batteries for my Victron environment. Which BMS do you recommend? I live in New Caledonia and I have been following your channel for a very long time and I find your videos very interesting. Thank you for your reply.
Thanks for following along for so long! I would definitely recommend the JK BMS, either the BD series or the new PB series as shown here. off-grid-garage.com/battery-management-systems-bms/
Hey Andy. I got the hardware v15.xA of the JKBMS Inverter, It seems the same on the outside, stil havent gone throough the settings yet. Only just connected the balance leads and Bat Neg to it and powered it on and made sure LFP was set.
Thank you for your video. The code does not look very complicated and must have a time component that is checked by the software on the pc. It probably won't be long before the algorithm becomes known. It can probably be tricked if we take Andy's code and set the time on the pc to the time Andy had at the time. I assume it is time in seconds since a defined date
Hi Anddy, congratulations on what you do. to update which serial adapter you use. I have 2 BMS blocked to failed update. This BMS JK is a disappointment. Thank you
Hi Andy, fantastic video as always, would it be possible for you to use your powers of persuasion to get some information on the PACE BMS, my batterie / BMS needs calibration. You have touched on this BMS in the passed and there are a number of batteries on sale in south africa that use one of the PACE BMS models. I have the PBmsTools software and it does have a calibration screen, the problem is I only think I know how to carry out the calibration but i don't know for sure. Any assistance would be great.
i have the 200A version and it keeps tripping when larger motors start (vacuum or a/c). They draw 50A only each and Discharge OCP Delay (S) is set to 600 (in case it's actually mS) to avoid tripping with inrush current. Super annoying.
It's just a time based generator: the code is based on the current time stamp. The application computes the code and see if it matches within a range of an hour or so. Meaning that if you can set the clock on you computer to the same time Andy has, the same code should work.
Oh wise and knowledgeable JK BMS expert,i have purchased my first jk BMS and I see Ballance plug one has for a start 2 black wires that look to go to the sensor and the very next wire I would assume goes to the negative most battery terminal, however I would expect that it should be a black wire,my one is red,is your one here the same? As mine is exactly this model
I have heard from other that JK is sometimes using just red cables without any black one. I never heard about two black ones though. I would just connected them as usually, first one is bat-, next one is bat1+, next one is bat2+,... The BMS should also come with a manual and some diagrams on how to connect the BMS. Follow that recommendation.
@Andy can we upgrade the BMS on JK-PB2A24S15P , its on version 11 and the RS458 sends and receives data but cannot connect to the Monitor like i see on yours Andy
Does JK BMS have a real time clock? Probably the PC is checking the time in the code. Maybe it would be possible to set the time on the PC back to when the code was valid. Probably also need to make sure PC is not connected to internet to prevent it from getting correct time.
Heya, oh wouw 2 weeks old vlog damn I mist this 1 good we can watch it later and learn some more thanks for that info, why, my jk BMS is sent and will be at my adress around 17 febr. well hope I dont need it but this is just the 1st BMS so you'll never know
Hello, I want to ask you a question I bought two 100A lithium batteries, two years ago one has just stopped working it charges up very quickly and then discharges very quickly so I have just taken it apart. it looks very good quality inside there is no BMS is this normal I’ve never seen this before I could send you a picture if this is not normal so I’m also wondering about the other one. Is it safe to use it. I’ve looked at battery tear down on RUclips and everyone seems to have a BMS. Is it normal for a battery not to have one? Thank you to anybody that answers.
If you are talking about the normal 12V LiFePO4 batteries, they have to have a BMS. There are 4 cells inside the box and there MUST be a BMS as well. If not, you can be lucky that none of the cells has gassed yet. Most likely, one or more of the cells is now damaged and hence the voltage drops quickly.
Andy, I wonder if this code, part of the authentication process embedded 'solely' within the update software. If I reverse engineer the jk updater would I be able to bypass this process. Has anyone else tried?
I have PB2A16S20P HW v15.XA SW v15.05, not working update to 15.10. I tried the standard update, it doesn't start and after about 60 seconds the BMS restarts. When I want to do a force update, it's the same. Support is terrible. It looks like the BMS bootloader didn't go into update mode.
I don't understand why the JK code would only work for an hour. The bricked BMS does not know what time it is and how much time has passed since the code was generated. It even doesnt know which time zone in the world it is in. I would imagine that if you disconnect the PC you are using for the update from the internet then the code could be used indefnitively.
The BMS does not know, no. But the software on the PC has got the time from the computer. And yes, you are right, some here have already done that and set the time back and it seemed to have worked.
Hi Andy, can you tell me were I can get the RS485 to USB adapter? There's quite a few out there and some people seem to have issues with certain model...
The only, I could get work on my Dell laptop was "waveshare industrial USB to RS485 converter with original FT232RL". Tested honestly like 4 models and this was the only one I could get work. You need to sacrifice one RJ45 cable and connect 3 cables according to JK pin layout. Easy.
Good day all, I have two JK-PB1A16S10P BMS Firmware version 15.07. I tried to update one BMS to Firmware version 15.17. The procedure follow were as per Andy's video, the update only came as far as 4% and then nothing..I tried again and still nothing...I then tried the brick procedure then and still nothing. The BMS Monitor software is version 2.7.0 . The communication tab for sending and receiving do show activity for sending and receiving. The error message showed by the BMS Monitor software is "Process Error Response". Any ideas what could be the issue?
I have resolved this issue ,I bought a waveshare Industrial USB to RS485 Converter Bidirectional Adapter as per Andy's advice and tests. This device worked , mine (Hexin) did not.
Hello, i have a big problem with my JK BMS PB2-16S-20P V15.5. the BMS doesnt start when i push the start switch. And actualy os not possible for me to make a forced upgrade firmware with JK procedure ! I have a '4" screen and all data is 0 ! Please help meeeeee :( :( :(
Most of the Daly BMS sucks with balancing. In fact, they all do... With large capacity cells, you most likely need an active balancer as well to make it work. The tiny balancer in these BMS has no chance.
Sorry, I have a different problem. On bms JK-PB2A16S20P-4.3LCD I have 1 error, SCP release failed. How to remove it?. In the menu I have SCP delay - 1500ms, SCPR delay - 6s. Everything works normally Thank you
For all the customers that downloaded the wrong firmware, that want to force the update despite the warning it’s the wrong firmware and then blaming JK / asking for replacement or support.
I updated the bms to version v15.23, after the update the display stopped working, everything else works, is it a software error? anyone else had this??
There is a v15.24 on Andy's website (found it on a forum). Check the change log. There is a LCD display problem with v15.23. I updated to v15.24 and the display is working again.
My jk won’t let me change my cell RVC even when I lower the 100% SOC it still doesn’t let me set the value to what I want. just says sending failure. only lets me set to 3,550 or above I want to set it to RCV=3.450 100% soc=3.449 it simply won’t let me 🤷🏻♂️
Andy please help me. JK customer service is horrible. I bought 2 cards JK-PB2A1620P. I made the update 15.05---->15.10 on a card no problem, but on the second impossible the progress bar does not advance even with the forced update, the led stops blinking until the beep 2 minutes after. JK doesn't understand or doesn't want to understand. I've sent videos on how to update but no response. That is, if someone sends me the update instructions. Has anyone had the problem or is the update not working?
Hi, hast du das am 14.12. gemacht? Ich mein ich könnte da eine Logik in Code erkennen. Möglicherweise red ich auch total Schwachsinn 😂 aber es wäre ja zumindest ein Versuch, die nervige halbe Stunde selbst zu berechnen und den Code selber zu erzeugen.
Has anyone been able to unlock their BMS updated from V15.05 to V15.10 with one of the codes posted here? The update supposedly went through cleanly for me, but the BMS password no longer works and I haven't received any response from JK so far... Neither by mail nor by Whatsapp.
Hallo nach Australien ! Ich bin Johannes- leben in Montenegro und würde mir gern eine DIY Batterie Box -280 ah-48V zusammen stellen. - wozu würdest du mir raten! LG Johannes (Rentner 64)
Hi Andy, I have PB1A16S15P Hardware version 15.XH, i have wrong force update firmware with PB2A16S15P v15.XH now all communication not working and the bms keeps beeping. I have try to force update correct firmware but not working at all. did my bms totaly broken ?
I also had a "double bricked" PB2A16S15P (force update also failed). JK BMS support was not of much use. By trial and error, I got it working today. 1. Turn off the BMS - disconnect all power. 2. Connect the RS485 cable to computer and BMS and start the JK BMS software and do a force update with the BMS still off. 3. Connect power to the BMS (I used a power supply to B- and B+ without any batteries). 4. Press and HOLD the power switch. In my case, the BMS powered on and the force update completed - saving my BMS. I hope it works for you too.
![Noob To Max With DRAGON REWORK In Blox Fruits [FULL MOVIE]](http://i.ytimg.com/vi/LnBMOinoOvA/mqdefault.jpg)
I think Anddy have a special line whit JK, 😂, I have whatsapp, email, to get the code but now answer.
Maybe because is Saturday?
Bad choose to make software update on Friday nighr
They will not reply on the weekend. Even they have some time off sometimes😁 The opening hours are on their contact website.
@@OffGridGarageAustralia Solved, disable internet, manual date and time, and have used your password.
Jeki is back to life
@@gepettoautomobile Oh, wow, you have set the date and time same as mine when I did the update and the password still worked?
So, I can just use the password over and over again if I set the time manually...
That's a great find! Gives me something to play with!
@@OffGridGarageAustralia Yes, someone coment with the exact time Stamp, that make my job easy, then I make a loterry because I don't know you Zone, Australia is so big.
But I was lucky, and first zone work
@@OffGridGarageAustralia If we have a couple of codes and timestamps as a reference, we can make a code generator so you don't have to mess with the clock anymore.
Found recently this channel. Andy is absolutely amazing and all the tests and reviews and constructions are what I've looked for a lot of time. Not many youtubers show pro and cons and in depth usage tests of these products. So now I've an huge amount of videos to recover, but it's all right. Thanks Andy for your channel, is a gold mine for the solar and off grid communities. Cheers!
Thanks a lot and welcome to the channel!
I had to request a code to unlock my JK BMS as I had forgotten the password to access the parameters. I was just thankful that it is possible.
Ah, great, that's also good to know this is possible!
Disculpa como hiciste para pedirlo?
Great work finding this solution.
Crazy that JK didn't seem to know how to flash a bricked device.
Not apparently at first?,.. and then they can suddenly provide a code, it remains strange, or the timeline in the video is not correct..
@@habana7638 A while back, JK and I tried to fix the bricked BMS without success. JK tried many, many different ways and then finally gave up. Holding the power button was never part of any of their provided instructions.
Great video Andy - I still haven't upgraded mine yet but touch wood it's been up and running for weeks now with no issues whatsoever. Was worrying about flashing the firmware after hearing about you bricking yours but as always you've settled my nerves! Keep up the good work - prost! 🍻
If yours is working as you need it, I wouldn't bother updating unless you need the new functions which came with v14.16 or later.
great news but Andy you had a great opportunity to try recording any old version. It would have been interesting to see the result. And only after that update to the latest.
Glad there is a rescue procedure ....
Yes, a bit cumbersome, but there is...
Awesome Andy for your great community support!
Keep it up
I too recovered from a failed Seplos BMS 10E firmware update too. But I cannot exactly remember the steps I followed :(
Ah, I didn't know they can fail as well. It would b great to have these info. Did you follow a procedure Seplos sent you maybe?
I didn't check with Seplos.
But I guess below were the steps I followed:
1. removed all battery and inverter cables including sensing wires
2. kept the pack idling for 5 mins or so
3. reconnected cables (without inverter cables)
4. flashed one of the firmware
Excellent, thanks Andy and community!
Again a VERY informative video, Andy. Good to know JK is fast with the code. Something else, i was watching older video's, and looked into your website too. I can not find any information about the NOARK DC breaker and possible add-ons, could you please make a video about it and post these items on your website too?
The NOARK breakers are a bit difficult to get. Even they are coming from the EU, they are hard to get over there as people told me.
I made this video here when we built the battery shelf: ruclips.net/video/iZeptultLBo/видео.html
And I have them on my website here: off-grid-garage.com/battery-accessories/
If the PC Software calculates the code based on time: we just need the exact time you requested the code / when it was valid and everyone could set the Computer to this date and time for the upgrade
Have you tried?
Yes @Off-Grid Garage, please tell us time and date when you used the code
I'm thinking, would they just use the last 8 digits of the Unix epoch timestamp or something. I can't test that since I don't have this BMS, but would be a good first attempt. Andy, up for some trial and experimentation?
January 16th 2023 at 11:23 he received the code (keep the Timezone in mind)
Requested 11:10
@@upnorthandpersonal more like a time based calculation some “seed” I guess.
Linux epoch times for every minute from 11:10 AM to 11:23 AM on January 16, 2024, in the Australia timezone:
- 11:10 AM: 1642276200
- 11:11 AM: 1642276260
- 11:12 AM: 1642276320
- 11:13 AM: 1642276380
- 11:14 AM: 1642276440
- 11:15 AM: 1642276500
- 11:16 AM: 1642276560
- 11:17 AM: 1642276620
- 11:18 AM: 1642276680
- 11:19 AM: 1642276740
- 11:20 AM: 1642276800
- 11:21 AM: 1642276860
- 11:22 AM: 1642276920
- 11:23 AM: 1642276980
And used code was 14012106
You make some people happy.
The procedure remember me the flashing procedure on esp device.
Thnks
Happy to help
Thank you very much, Sir, for this video. You saved(restored) my JK from the brick state.
Hi andy
Currently building 2 ESS batteries with the PB2A16S20P JK BMS, this week I had everything ready and tried hooking up my 2 BMS to my Cerbo GX so I made a Type A CAN cable and connected it to the CAN port of the first BMS which is set to adress 0 then used the blue network cable to connect the second BMS with adress 1 to the first using the ports on the right. But in the cerbo I only kept seeing the first BMS. Then check alll the settings via the bluetooth on both BMS everything seemed fine. So i bought an USB-RS485 converter to be able to upgrade both BMS to 15.24 firmware started with the slave BMS which was already set to adress 1 and connected it to the BMS monitor software uploaded the firmware and everything worked fine.
Then connected the master BMS which I set to adress one also and connected to RS485 connector to the ports on the right. first communication seemed to be working and I tried to upload the newest firmware. But it kept keeping stuck at 0% after that the communication seems to be lost. So I rebooted the BMS and it seemed to start working again but the RED LED is blinking. So i tried via the software to change some settings and that seemed to work most of the time occasionally I got timeout error's. But firmware update still not working. So I tried the method in this video using the force update and the button but nothing happens.
So I think there is an hardware issue and I need to contact JK for help/replacement, but first wanted to check if there are other methods.
Same here, I can not force an update☹
@@Franky6767
Same here. Did you manage to get this fixed?
I have a PB2A16S20P bms running on version 15.24. I am not able to update the firmware with the normal method. The firmware update process gets stuck at 0% and after some time BMS restarts by itself. Luckily it didn't get bricked, probably because the firmware rewrite process was never initiated.
During this time the capacity indicator on the display (it's the smaller 2.5" version) goes to 00% and the inverter starts throwing the error 61, which means the communication to the battery has been lost.
In this chat, I read someone talking about the High Frequency inverter being ON near to their BMS, causing the forced update failures. I will try and see that keeping the inverter OFF during the update process will fix the problem I am facing..
I don't remember how I did the update earlier - with or without the inverter running nearby. Probably it was OFF. Will try and see.
Andy.... I have enjoyed watching your videos for quite some time. Your skill at picking apart the complexities and explaining it in ways we can all understand is amazing.
I have tried to capture your recommended settings for chargers and BMSs but it can be difficult to capture it all from the videos. Do you have a document or white paper that has all the settings you use for your JK BMS?
Thank you very much for your kind feedback. That will be in the next video...
Just my 5 cents to this topic: I had a very hard day today ... tried an update, it failed, bricked the bms ... and after a few hours of unsuccessful trials to force update, i had an idea: what if some electric device is creating some electromagnetic noise which is ruining the RS485 communication? Turned off all devices (including my laptop's charger) ... and the force update was successfull.
Thank you for posting this. I had my share of misery the other day, tried to update to v15.30 and it was bricked in 5s. The I've tried to force update which always stopped before 40%, tried various cables, in total about 30 times or more. The BMS of the new battery was sitting (for testing) near the inverters (high frequency). Once I've stopped them, the force update finished flawlessly.
already ordered the previous jk bms.. i think of leaving the inverter one for any car modules pack when or if i find !!! but i guess the update repaired some bugs too in yours andy
The firmware updates can be great but also bad. With the old style BMS you can't go wrong...
Andy this is great information, Thank you
Could you suggest a option to save all user settings?
which would be done prior to any issues as this, then after fixing a bricked BMS we could just reload user setting.
this would be a great option that other BMS's do not have.
Thanks again
Scat
As far as I know, there is no option to save all settings in a file. I would suggest taking screenshots and keep them in case you need to setup the BMS again.
Hi Andy, I have a JK-PB2A16S15P V15. I have a minor issue with the app in that it shows only 1 column in lieu of 2 like it did originally (takes some getting used to). It's OK when I turn my phone to landscape (same with other phone). I thought I would let you know that I tried all your efforts to default the JK but with no luck, I even bricked it & brought it back. The JK came with V15.10, worked OK, immediatly upgraded to V15.11 (tks to you) & now have upgraded to V15.17 still shows 1 column. Cheers.
Hello Andy, I want to install two 48V/280 Ah batteries for my Victron environment. Which BMS do you recommend? I live in New Caledonia and I have been following your channel for a very long time and I find your videos very interesting. Thank you for your reply.
Thanks for following along for so long!
I would definitely recommend the JK BMS, either the BD series or the new PB series as shown here. off-grid-garage.com/battery-management-systems-bms/
Hey Andy. I got the hardware v15.xA of the JKBMS Inverter, It seems the same on the outside, stil havent gone throough the settings yet. Only just connected the balance leads and Bat Neg to it and powered it on and made sure LFP was set.
Thank you for your video. The code does not look very complicated and must have a time component that is checked by the software on the pc. It probably won't be long before the algorithm becomes known. It can probably be tricked if we take Andy's code and set the time on the pc to the time Andy had at the time.
I assume it is time in seconds since a defined date
Yes, a few people have confirmed this now and it seems to work by setting the date and time back.
Hi Anddy, congratulations on what you do. to update which serial adapter you use. I have 2 BMS blocked to failed update. This BMS JK is a disappointment. Thank you
You can recover them with this method. Give it a try, it will work.
Hi Andy, fantastic video as always, would it be possible for you to use your powers of persuasion to get some information on the PACE BMS, my batterie / BMS needs calibration. You have touched on this BMS in the passed and there are a number of batteries on sale in south africa that use one of the PACE BMS models. I have the PBmsTools software and it does have a calibration screen, the problem is I only think I know how to carry out the calibration but i don't know for sure. Any assistance would be great.
Thanks Mike. I have never done a calibration on a Pace BMS myself.
Is voltage and current off from what the BMS shows and what you can measure?
WE NEED 64S 30A active BMS. Someone have ideas?
Thanks again! You saved my battery:)
but, the bluetooth connection doesn't work anymore, no connection, no bluetooth broadcast from JK BMS, any idea ? thanks Andy.
just asked to jk support, we will see the response
Thanks Andy
Thank you, Wayne!
Thanks for deleting the "F" I was worried about this after the BMS was working 😉
Hahaha, it's all working again!
bundle of thanks...
This reminds me of the Star Trek "the changeling" episode memory alpha.
Hahaha, great!😄
BOOOOOM💥💥💥💥
Best 👕 ever!
Hi Andy how are you if you buy the jk Bms must be easy to install for everyone
Tell me, thank you, why the red error light is on, I collected the battery and I don’t see any errors
i have the 200A version and it keeps tripping when larger motors start (vacuum or a/c). They draw 50A only each and Discharge OCP Delay (S) is set to 600 (in case it's actually mS) to avoid tripping with inrush current. Super annoying.
I haven't had a vacuum without soft start and motor control since the 70s tbh. Even my shop vac is spinning up to avoid surges.
So how does this timer work, does JK corporate have access to our BMS in real time?
who knows?
Any Chinese device with a chip has.
It's just a time based generator: the code is based on the current time stamp. The application computes the code and see if it matches within a range of an hour or so. Meaning that if you can set the clock on you computer to the same time Andy has, the same code should work.
They can't access your BMS remotely. How would that work??? It has only BT connection without internet.
One quick question not related to the video😊 Any chance to have a video on the new EVE 280K? Lots of nice features on paper
I thought only the terminals are different but chemistry is still the same? I'll have a look!
@@OffGridGarageAustralia extended temperature, higher charge/discharge current among other
Like#3 - nice and Ode to AVerageJoe! Booooooom! 🙄🙄🙄shoveling snow 🙄🙄🙄
Oh wise and knowledgeable JK BMS expert,i have purchased my first jk BMS and I see Ballance plug one has for a start 2 black wires that look to go to the sensor and the very next wire I would assume goes to the negative most battery terminal, however I would expect that it should be a black wire,my one is red,is your one here the same? As mine is exactly this model
I have heard from other that JK is sometimes using just red cables without any black one. I never heard about two black ones though. I would just connected them as usually, first one is bat-, next one is bat1+, next one is bat2+,... The BMS should also come with a manual and some diagrams on how to connect the BMS. Follow that recommendation.
@Andy can we upgrade the BMS on JK-PB2A24S15P , its on version 11 and the RS458 sends and receives data but cannot connect to the Monitor like i see on yours Andy
Does JK BMS have a real time clock? Probably the PC is checking the time in the code. Maybe it would be possible to set the time on the PC back to when the code was valid. Probably also need to make sure PC is not connected to internet to prevent it from getting correct time.
No real time clock, no... The software gets the time from the PC though.
Heya, oh wouw 2 weeks old vlog damn I mist this 1 good we can watch it later and learn some more thanks for that info, why, my jk BMS is sent and will be at my adress around 17 febr. well hope I dont need it but this is just the 1st BMS so you'll never know
Hello, I want to ask you a question I bought two 100A lithium batteries, two years ago one has just stopped working it charges up very quickly and then discharges very quickly so I have just taken it apart. it looks very good quality inside there is no BMS is this normal I’ve never seen this before I could send you a picture if this is not normal so I’m also wondering about the other one. Is it safe to use it. I’ve looked at battery tear down on RUclips and everyone seems to have a BMS. Is it normal for a battery not to have one? Thank you to anybody that answers.
If you are talking about the normal 12V LiFePO4 batteries, they have to have a BMS. There are 4 cells inside the box and there MUST be a BMS as well. If not, you can be lucky that none of the cells has gassed yet. Most likely, one or more of the cells is now damaged and hence the voltage drops quickly.
Is this also possible with the old style of BMS ?
B2A20S20P
V11 is currently the firmware I have. Can I replace it with the V14 or V15 ?
No, firmware on the old style BMS can not be updated.
Andy, I wonder if this code, part of the authentication process embedded 'solely' within the update software. If I reverse engineer the jk updater would I be able to bypass this process. Has anyone else tried?
I have PB2A16S20P HW v15.XA SW v15.05, not working update to 15.10. I tried the standard update, it doesn't start and after about 60 seconds the BMS restarts. When I want to do a force update, it's the same. Support is terrible. It looks like the BMS bootloader didn't go into update mode.
I don't understand why the JK code would only work for an hour. The bricked BMS does not know what time it is and how much time has passed since the code was generated. It even doesnt know which time zone in the world it is in. I would imagine that if you disconnect the PC you are using for the update from the internet then the code could be used indefnitively.
The BMS does not know, no. But the software on the PC has got the time from the computer.
And yes, you are right, some here have already done that and set the time back and it seemed to have worked.
Haven't bricked one yet but I'll do my best.
It's not hard😉
Hi Andy, can you tell me were I can get the RS485 to USB adapter? There's quite a few out there and some people seem to have issues with certain model...
I believe it's linked to on Andy's website.
The only, I could get work on my Dell laptop was "waveshare industrial USB to RS485 converter with original FT232RL". Tested honestly like 4 models and this was the only one I could get work. You need to sacrifice one RJ45 cable and connect 3 cables according to JK pin layout. Easy.
I tested a few here and they all worked and are linked on my website: ruclips.net/video/I6qz5ZIKzTA/видео.html
I have 2 BMS JK blocked. Do you know if there is a different method to force the firmware? This method doesn't work for me. Thank you
There is no different method... What does not work for you? Have you requested a code form JK or did you use my code?
Good day all, I have two JK-PB1A16S10P BMS Firmware version 15.07. I tried to update one BMS to Firmware version 15.17. The procedure follow were as per Andy's video, the update only came as far as 4% and then nothing..I tried again and still nothing...I then tried the brick procedure then and still nothing. The BMS Monitor software is version 2.7.0 . The communication tab for sending and receiving do show activity for sending and receiving. The error message showed by the BMS Monitor software is "Process Error Response". Any ideas what could be the issue?
I have resolved this issue ,I bought a waveshare Industrial USB to RS485 Converter Bidirectional Adapter as per Andy's advice and tests. This device worked , mine (Hexin) did not.
Hello, i have a big problem with my JK BMS PB2-16S-20P V15.5. the BMS doesnt start when i push the start switch. And actualy os not possible for me to make a forced upgrade firmware with JK procedure ! I have a '4" screen and all data is 0 !
Please help meeeeee :( :( :(
I have a regular JK-BMS JK_B2A24S15P. The firmware update is not possible for this model? Thank you for your help.
No, they cannot be upgraded, no...
@@OffGridGarageAustralia so bad, it would be so easy with the phone.
It seems like the WhatsApp barcode is gone from their site. Does anyone know of a more speedy way to reach them to get the code other than by email?
Nice they have an unbrick mode, maybe somebody can trace how this works to help the ones who need it more swiftly.
Already done, I think. You can just change the date and time of your PC to when I did the reset and use the code from the video.
Super, THX.
Thank you too!
Hallo Andi ! Mein Daly BMS 200A hat sie Funktion Balanced Charge. Was hältst du davon ? L.G. nach down under Klaus
Most of the Daly BMS sucks with balancing. In fact, they all do...
With large capacity cells, you most likely need an active balancer as well to make it work. The tiny balancer in these BMS has no chance.
Nice
Sorry, I have a different problem. On bms JK-PB2A16S20P-4.3LCD I have 1 error, SCP release failed. How to remove it?. In the menu I have SCP delay - 1500ms, SCPR delay - 6s. Everything works normally
Thank you
It's stupid as hell that you need an unlock code and it is time limited. Why do they need to make it that hard?
For all the customers that downloaded the wrong firmware, that want to force the update despite the warning it’s the wrong firmware and then blaming JK / asking for replacement or support.
Once the company goes tits up, those bricked cards are problem waste.
I guess, JK is here to stay. I can't see them failing and not selling BMS any more. Also, we now know how the code works...
You should get on the payroll of JK, maybe you should offer them to write readable manuals for them (payed of course)
Yeah, but who is making videos then... Andy2?😆
Would it be possible to downgrade firmware with such forcing method ?
Could be, but why would you? I cannot recall a previous firmware which was better of what we have right now.
What is "Bricked"?
Not responding any more. Happens when the update fails half way through.
Thanks man 👍!
Is $2015 USD a good deal for an EEL 304AH battery.
What are the other deals you can get? Compare...
Strange, how they or ur BMS know that in one hour. Must be a time stamp inside the update program. Or manipulate the time
I thought you were kidding about the giveaway 😅
Nooooo!😆
I updated the bms to version v15.23, after the update the display stopped working, everything else works, is it a software error? anyone else had this??
There is a v15.24 on Andy's website (found it on a forum). Check the change log. There is a LCD display problem with v15.23. I updated to v15.24 and the display is working again.
My jk won’t let me change my cell RVC even when I lower the 100% SOC it still doesn’t let me set the value to what I want. just says sending failure.
only lets me set to 3,550 or above
I want to set it to
RCV=3.450
100% soc=3.449
it simply won’t let me 🤷🏻♂️
This will be explained in the next video!
You are so good Andy!
I have a feeling that it’s maybe because it is connected to the inverter already, maybe I will try a reset and set parameters before I plug it in.
Andy please help me. JK customer service is horrible. I bought 2 cards JK-PB2A1620P. I made the update 15.05---->15.10 on a card no problem, but on the second impossible the progress bar does not advance even with the forced update, the led stops blinking until the beep 2 minutes after. JK doesn't understand or doesn't want to understand. I've sent videos on how to update but no response. That is, if someone sends me the update instructions. Has anyone had the problem or is the update not working?
Hi, hast du das am 14.12. gemacht? Ich mein ich könnte da eine Logik in Code erkennen.
Möglicherweise red ich auch total Schwachsinn 😂 aber es wäre ja zumindest ein Versuch, die nervige halbe Stunde selbst zu berechnen und den Code selber zu erzeugen.
Do it!
💙👊😎
👋🙋♂️
Has anyone been able to unlock their BMS updated from V15.05 to V15.10 with one of the codes posted here? The update supposedly went through cleanly for me, but the BMS password no longer works and I haven't received any response from JK so far... Neither by mail nor by Whatsapp.
You'd think the windows program would be able to generate the code for you, or at least retrieve it :)
Schneeeeschaufeln - LOL !
It's a reference to another video. Ther person got the message😊
🐸🐸🐸
Hallo nach Australien ! Ich bin Johannes- leben in Montenegro und würde mir gern eine DIY Batterie Box -280 ah-48V zusammen stellen. - wozu würdest du mir raten! LG Johannes (Rentner 64)
Die Seplos Mason oder EEL Batterien sind dafuer sehr gut. Hab viele Videos darueber gemacht.
off-grid-garage.com/diy-kits/
35 MINUTES later and No Email or reply from JK BMS - what a terrible mess
Only the person in the video is sent a key. The Chinese send the rest, to put it mildly, to the seller.
❄☺
You got the message😆
@@OffGridGarageAustralia Oh I did! ^_^
Maybe with this brick you can downgrade. Please try it. Thanks in advance.
You may need a code again...
+++
Thank you!
Hi Andy,
I have PB1A16S15P Hardware version 15.XH, i have wrong force update firmware with PB2A16S15P v15.XH now all communication not working and the bms keeps beeping.
I have try to force update correct firmware but not working at all. did my bms totaly broken ?
I also had a "double bricked" PB2A16S15P (force update also failed). JK BMS support was not of much use. By trial and error, I got it working today. 1. Turn off the BMS - disconnect all power. 2. Connect the RS485 cable to computer and BMS and start the JK BMS software and do a force update with the BMS still off. 3. Connect power to the BMS (I used a power supply to B- and B+ without any batteries). 4. Press and HOLD the power switch. In my case, the BMS powered on and the force update completed - saving my BMS. I hope it works for you too.