Probably better that you show how you got the battery case opened so people dont destroy the battery before they get to fixing it . And why did you have to remove the battery leads in the first place ? Could have tested them while still hooked to the main board. Also the part you said needs replaced , can be found nowhere ? A link would be helpful . Thanks
He unsoldered the battery leads because you don't want the board to be powered while you replace that chip. You will definitely short out the board if didn't remove the cells from the board. He knew the battery was good. He was showing us that the battery was good and that the board was the issue.
I'm not an expert but...traditionally when you see the "xxx" it means that part of the chip number is omitted. IC is "integrated circuit" and is not part of the part number. BQ30 is part of the part number and the "xxx" means there is more of the part number which is excluded. This can be because there may be a family of chips which start with the same characters/numbers and then deviate for variations such as higher current and/or voltage capabilities and different packages (DIP, SMT, through-hole and more). Searching www.mouser.com I find a series of IC's which begin with BQ30 including this one: BQ3060PWR Interestingly enough, it's a "power management" chip. So it's probably in the right family of chips. Once someone on here actually cracks one of these batteries open and reads the number off the actual chip, we'll know more. There may be minor variations from DJI (or whoever makes their battery packs or the PCB's in them) which utilize a different chip of the same family. Who knows. But this information should get us all on the right track to finding the replacement chip. Hope and pray that replacing it actually works. See my comment to another commentor below regarding hot-air soldering for how to replace this chip with those itty-bitty legs.
I'll reply to this post I made as it's the most technically-useful of the two I made about this video. I disassembled my Phantom 4 battery. That's a neat trick. I'll have to do a video to explain it. Plastic hotel-room keys, cut into slivers helped. Then a box knife carefully applied to some areas. If you're not mechanically inclined, you're probably going to eff something up. Slow, easy, look. Anyway, my chip is a BQ30Z55 from Texas Instruments. It has the TI logo and, interestingly enough, is the ONLY chip which shows up on Mouser's website with that designation (for comparison, look up a 555 timer chip...there are multiple manufacturers). The "main board" appears to be covered, at least partially, in some coating. I am sure the coating will need to be removed to remove the chip. The heat of a soldering iron may burn it off. Maybe not. I'd normally grab "brake parts cleaner" for a coating like this but that could be severely detrimental to the components so I'm not sure what I'll do at this point. Also, in this video the battery tests at 15v or so. My battery tests at 1.4 volts, about 10% or so of what the video shows. My battery may not be suffering from what this video purports to correct. Just FYI. It might be worth reading Grayson Miller's post in reply to another of my posts on this video referring to a used battery from eBay.
when I watch the video and he's soldiering the new chip on it looks like he's running the soldier across all those little legs that come from the chip. am I not seeing this correct? also what is this program ev2300 and how do you use it to fix this problem, people made mention of it but not how to use it..... is it worth all the hassle and work over the cost of a new battery?
Its a surface mount chip. The method shown absolutely will NOT work (Just look at the space between the pin on the chip). These items require special soldering equipment. The technique could not possibly work. Why do they put this up?????????????????????????????
Yeh, you cant just disconnect the main leads and then replace the BQ chip. He has skilled a big part of the process. Even if the replacement chip came off a battery of the same model the PF flag would still need to be removed.
I haven't done this (yet) but I have soldered some itty-bitty SMT DIPs like that doing Playstation mods...around 2000. I did successfully un-screw some stuff I screwed up, back then, which was very easy with those tightly-spaced legs. If I do this mod, my intent is to use something new to me last year: a hot-air solder station. I made a couple of PCBs with SMT and I used solder paste and a hot-air solder station. MAGIC! Effin' brilliant. Components centered up on pads just lovely. I bought a cheap (Chinese) hot-air solder station from Amazon and solder paste which I think came from Mouser Electronics (online). Just remove as much of the original solder from the board as you can and smear a little of the solder paste across the pads and place the component. Close, actually, counts; the chip should center its legs up on the little pads. I hope this idea works (it should) because it's how I'll be doing the mod in this video. Oh, and only paid about $65 for the solder station on Amazon...much less than the price of one these batteries from DJI, in case, again, this actually works.
Nice! Id love to learn how to soldier chips like that. I just bough one of these repaired batteries on ebay. Got it for $70 and its practically new. It looks new. Says it only had one charge cycle on it. So far its worked great.
Grayson, I hope your eBay battery works out for you. Please come back and comment here after you've used it for awhile so we may all benefit from your experience. Thanks for the reply.
BQ30Z55 CHIP CAN BE PURCHASED HERE: www.ebay.com/itm/1PCS-BQ30Z55DBTR-BQ30Z55-TSSOP30-NEW/123324268973?hash=item1cb6b301ad:g:9IYAAOSwbQZbfAp6:rk:2:pf:0
NO NO NO, can't do this, wrong method!!!. This battery not working, only leds work. After change BQ30Z55 need: 1 Clear PF (permanent fail) 2 Need calibration (charging, discharging Current)
Hi Taranu, I think you are correct! Thanks for the suggestion. I have a battery that needs the BQ30Z55 resetting. To confirm will the UBRT program fix a P4 battery with "unseal" and "clear PF" options? Is EV2300 the only interface board that will work?
The guys a genius. Too bad there are still so many unanswered questions for us simple minded peasants.
Probably better that you show how you got the battery case opened so people dont destroy the battery before they get to fixing it . And why did you have to remove the battery leads in the first place ? Could have tested them while still hooked to the main board. Also the part you said needs replaced , can be found nowhere ? A link would be helpful . Thanks
He unsoldered the battery leads because you don't want the board to be powered while you replace that chip. You will definitely short out the board if didn't remove the cells from the board. He knew the battery was good. He was showing us that the battery was good and that the board was the issue.
Would be nice if dji offered the board for sale. But life's rarely so easy.
www.mouser.co.uk/ProductDetail/Texas-Instruments/BQ30Z554DBT-R1?qs=sGAEpiMZZMsfD%252bbMpEGFJQXzLr0vfVK%2fsurSMxF5g8A%3d
How did you take the plastic casing off so cleanly?
Hi, I want to know the same thing! :) Are there video that show us this?
Hi ! Thanks for video ! I wonder where did you get IC BQ30XXX, is that new or a part of other device? Thank you in advance !
I'm not an expert but...traditionally when you see the "xxx" it means that part of the chip number is omitted. IC is "integrated circuit" and is not part of the part number. BQ30 is part of the part number and the "xxx" means there is more of the part number which is excluded. This can be because there may be a family of chips which start with the same characters/numbers and then deviate for variations such as higher current and/or voltage capabilities and different packages (DIP, SMT, through-hole and more). Searching www.mouser.com I find a series of IC's which begin with BQ30 including this one: BQ3060PWR Interestingly enough, it's a "power management" chip. So it's probably in the right family of chips. Once someone on here actually cracks one of these batteries open and reads the number off the actual chip, we'll know more. There may be minor variations from DJI (or whoever makes their battery packs or the PCB's in them) which utilize a different chip of the same family. Who knows. But this information should get us all on the right track to finding the replacement chip. Hope and pray that replacing it actually works. See my comment to another commentor below regarding hot-air soldering for how to replace this chip with those itty-bitty legs.
I'll reply to this post I made as it's the most technically-useful of the two I made about this video. I disassembled my Phantom 4 battery. That's a neat trick. I'll have to do a video to explain it. Plastic hotel-room keys, cut into slivers helped. Then a box knife carefully applied to some areas. If you're not mechanically inclined, you're probably going to eff something up. Slow, easy, look. Anyway, my chip is a BQ30Z55 from Texas Instruments. It has the TI logo and, interestingly enough, is the ONLY chip which shows up on Mouser's website with that designation (for comparison, look up a 555 timer chip...there are multiple manufacturers).
The "main board" appears to be covered, at least partially, in some coating. I am sure the coating will need to be removed to remove the chip. The heat of a soldering iron may burn it off. Maybe not. I'd normally grab "brake parts cleaner" for a coating like this but that could be severely detrimental to the components so I'm not sure what I'll do at this point.
Also, in this video the battery tests at 15v or so. My battery tests at 1.4 volts, about 10% or so of what the video shows. My battery may not be suffering from what this video purports to correct. Just FYI.
It might be worth reading Grayson Miller's post in reply to another of my posts on this video referring to a used battery from eBay.
Hartford Boothe hi mate just saw your post,
Very helpful, I googled the i.c NUM but can out two different IC. Any help please?
@@hartfordboothe7466 is it possible without replacing the IC? Just reset it by disconnecting the balance cord AND charge it to 15V? What do you think?
when I watch the video and he's soldiering the new chip on it looks like he's running the soldier across all those little legs that come from the chip. am I not seeing this correct? also what is this program ev2300 and how do you use it to fix this problem, people made mention of it but not how to use it..... is it worth all the hassle and work over the cost of a new battery?
You are seeing correctly, its pretty much "the way" to manually soldier ICs , see: ruclips.net/video/5uiroWBkdFY/видео.html
Desoldering tool?@@zm7160
The EV2300 is the hardware you connect to teh board, you then need software to drive it.
Its a surface mount chip. The method shown absolutely will NOT work (Just look at the space between the pin on the chip). These items require special soldering equipment. The technique could not possibly work. Why do they put this up?????????????????????????????
I have the same problema, do you change a chip?
i bought a new dji drone flew over to the Caribbean , opened it DOA... and that sucks
Hello Solmed, please respond!
I would be very much helped by being able to replace this unfindable part...
Vincent Robbesom www.mouser.co.uk/ProductDetail/Texas-Instruments/BQ30Z554DBT-R1?qs=sGAEpiMZZMsfD%252bbMpEGFJQXzLr0vfVK%2fsurSMxF5g8A%3d
Do you use the UBRT crack version to program the
BQ30Z554-R1
?
Yeh, you cant just disconnect the main leads and then replace the BQ chip. He has skilled a big part of the process. Even if the replacement chip came off a battery of the same model the PF flag would still need to be removed.
Where can I buy Circuit board as my is destroyed ?"
What I want to know is how the hell did he solder each one of those tiny little leads on that chip?
I haven't done this (yet) but I have soldered some itty-bitty SMT DIPs like that doing Playstation mods...around 2000. I did successfully un-screw some stuff I screwed up, back then, which was very easy with those tightly-spaced legs. If I do this mod, my intent is to use something new to me last year: a hot-air solder station. I made a couple of PCBs with SMT and I used solder paste and a hot-air solder station. MAGIC! Effin' brilliant. Components centered up on pads just lovely. I bought a cheap (Chinese) hot-air solder station from Amazon and solder paste which I think came from Mouser Electronics (online). Just remove as much of the original solder from the board as you can and smear a little of the solder paste across the pads and place the component. Close, actually, counts; the chip should center its legs up on the little pads. I hope this idea works (it should) because it's how I'll be doing the mod in this video. Oh, and only paid about $65 for the solder station on Amazon...much less than the price of one these batteries from DJI, in case, again, this actually works.
Nice! Id love to learn how to soldier chips like that. I just bough one of these repaired batteries on ebay. Got it for $70 and its practically new. It looks new. Says it only had one charge cycle on it. So far its worked great.
Grayson, I hope your eBay battery works out for you. Please come back and comment here after you've used it for awhile so we may all benefit from your experience. Thanks for the reply.
where do you bye the chip from
w haddow www.mouser.co.uk/ProductDetail/Texas-Instruments/BQ30Z554DBT-R1?qs=sGAEpiMZZMsfD%252bbMpEGFJQXzLr0vfVK%2fsurSMxF5g8A%3d
bang servicenya dmna battery gw rusak nih gabisa dicharge
BQ30Z55 CHIP CAN BE PURCHASED HERE: www.ebay.com/itm/1PCS-BQ30Z55DBTR-BQ30Z55-TSSOP30-NEW/123324268973?hash=item1cb6b301ad:g:9IYAAOSwbQZbfAp6:rk:2:pf:0
hello my friend, give me your email so I can take some doubts, thank you.
NO NO NO, can't do this, wrong method!!!. This battery not working, only leds work. After change BQ30Z55 need:
1 Clear PF (permanent fail)
2 Need calibration (charging, discharging Current)
Taranu Mihaita and how us that. Explain more please
amty lolo use software for bq30z55 to reactivate battery
Hi Taranu, I think you are correct! Thanks for the suggestion. I have a battery that needs the BQ30Z55 resetting. To confirm will the UBRT program fix a P4 battery with "unseal" and "clear PF" options? Is EV2300 the only interface board that will work?
AA Power yes, use ev2300 or parallel interface. Me I use ev2300
Thanks! Very helpful!