I actually fixed my nano receiver thanks to this video, my 5v solder pad broke on mine, and thanks to you, I know that I could use the input leg or the regulator!
I've now watched you destroy three boards. I have given you two suggestions in the past. You're not using them. So here they are again. (1) if you have a working board for a comparison use the diode function on your DVM. Test voltages to ground and see where they differ. May point out the problem. (2) when you do the power supply test, spray the board with 99% alcohol. Where it evaporates first is the hotspot. Focus your attention there.
Woohoo! Finally a repair video! What’s with all that flying your doing lately! ;-) Thank you for always sharing your diagnostic thought process, I learn so much every video. I’ve now successfully replaced mosfets on 2 esc, thanks man!
man... I like flying as much as I like repairing stuff... :) But if I don't have material to work with repairing stuff... I resume to the other love: flying :) Is that so bad?
On power draw test before removing components spray while under power with 99% and see where evaporation happens first. Often immediately points out the short. In this case the MCU would probably evaporate very quickly. You would know the board couldn't be salvaged. You put it in your box of donor boards causing no additional damage. You may also try cleaning up the pads and pins on the MCU and reinstalling it. You may get lucky and you gain valuable practice at no cost or risk.
My nanorx binds and and is receiving accurate telemetry data. I am able to reset and update its FW, BUT.... Betaflight doesn't recognize any input and there are no LED feedback from the rx. I've triple checked my connections and the outputs on my Crossfire output scripts. Crossfire tx is on 1 and Crossfire rx is on 2. I'm about to change out the rx with another when I get home from work, but would like to know if this one can be repaired. Any advice would be greatly appreciated! Thank you for this great video btw!
Hey there. I have a nano crsf rx when powered on green led is solid and won’t bind if I press bind button it just goes out any tips please. Would be great if I can use this unit. 👍👍
hello like your video, but was wondering if the RF IC was broken, where would you get the chip or could you tell me what its called? This will help me a lot!
@@LivyuFPV i only can see 3 rows of numbers on it and i plug on google search and no IC pops up. the MCU is Microchip i can see but dont know RF IC, ):
Hi I have a issue with my quad it fell out of the air meaning it lost power nd fell to the ground nd nothing works now if I touch the positive nd negative on the nano rx the continuity meter beeps same issue with the vtx tbs vtx. Would like to try nd fix it any input would be great
I use a little bit of kapton tape on those white plastic sockets.....and try to avoid blasting them with hot air.....pretty sure I picked that up from you, Livyu
@@toddmarshall7573 well that is kind of a logical thing to do :) I was not really looking at fixing this but rather show that sometimes you cannot know what part is in short so the only thing to do is take them out one by one until you know :) do you have another technique except pushing lots of amps into the short and check the one that gets toasted? taking into consideration that one actually has a 3.3v power supply around
@@LivyuFPV yes...and so do you. You just skipped that step. And you don't need to push massive amps. Just enough to make the part hotter than normal and identify it with the alcohol. A Li-Ion cell will do the trick in a 3.3V application. Another good troubleshooting technique is using the diode function of the meter. For this you need something for comparison.
Send me a message, I have tons of extra parts I would be willing to donate. I appreciate the videos and have been able to fix a lot of fc's and RX's that I fried starting in the hobby. I would like to see a video on the r9 mm, I had a few minis go bad and got them working but not by replacing the voltage reg the proper way but by jumping to the EN pin
Thank you for sharing. I dont know what is all this foss about crossfire modules and recievers. I have ceveral modules and many recievers and some good numbers of drones. Crossfire has given me headake everytime I want to bind or connect it to the Betaflight. They really need to have some good programmers and designers or very soon no one give a dam about their produkt anymore. I am tired of it allready
I actually fixed my nano receiver thanks to this video, my 5v solder pad broke on mine, and thanks to you, I know that I could use the input leg or the regulator!
I've now watched you destroy three boards. I have given you two suggestions in the past. You're not using them. So here they are again.
(1) if you have a working board for a comparison use the diode function on your DVM. Test voltages to ground and see where they differ. May point out the problem.
(2) when you do the power supply test, spray the board with 99% alcohol. Where it evaporates first is the hotspot. Focus your attention there.
Woohoo! Finally a repair video! What’s with all that flying your doing lately! ;-)
Thank you for always sharing your diagnostic thought process, I learn so much every video. I’ve now successfully replaced mosfets on 2 esc, thanks man!
man... I like flying as much as I like repairing stuff... :) But if I don't have material to work with repairing stuff... I resume to the other love: flying :) Is that so bad?
On power draw test before removing components spray while under power with 99% and see where evaporation happens first. Often immediately points out the short. In this case the MCU would probably evaporate very quickly. You would know the board couldn't be salvaged. You put it in your box of donor boards causing no additional damage. You may also try cleaning up the pads and pins on the MCU and reinstalling it. You may get lucky and you gain valuable practice at no cost or risk.
It's amazing that you can do this, thanks for showing us
That was awesome! Would love to see more like this one!
Very interesting indeed!
I watched the other tbs crossfire mod, that was also good.
Thankyou for this, keep them coming man.👍
Awesome video!
Really informative & well explained 👍
My nanorx binds and and is receiving accurate telemetry data. I am able to reset and update its FW, BUT.... Betaflight doesn't recognize any input and there are no LED feedback from the rx. I've triple checked my connections and the outputs on my Crossfire output scripts. Crossfire tx is on 1 and Crossfire rx is on 2. I'm about to change out the rx with another when I get home from work, but would like to know if this one can be repaired. Any advice would be greatly appreciated!
Thank you for this great video btw!
Would enjoy seeing more of these types of videos
Hey, I see my 5v and Ground are in continuity and I don't see any connections between these pads. Is there an easy fix or it's dead ?
I've got a nano receiver with poor range and some smd capacitors/resistance dead, how could I know what to get to replace them?
My nano has a constant red light
Is there a short ?
Its updated to the latest firmware
Great video, thanks for sharing
my tbs nano rx have short conection on GND pin and ch0ut1 .. and on betaflight cannot show any stick input.. how i can found trouble shot ?
Hey there. I have a nano crsf rx when powered on green led is solid and won’t bind if I press bind button it just goes out any tips please. Would be great if I can use this unit. 👍👍
Do you still do repairs?
How can I send you som broken tbs receivers I have three that need some fixing plz sir
hello like your video, but was wondering if the RF IC was broken, where would you get the chip or could you tell me what its called? This will help me a lot!
There is on the chip the exact model.
@@LivyuFPV i only can see 3 rows of numbers on it and i plug on google search and no IC pops up. the MCU is Microchip i can see but dont know RF IC, ):
@@LivyuFPV A link would be nice to it!
haha! Chris stop doing that! You Rock Livyu !!!
which pcb holder do you use? nice video as always 😉
Hi I have a issue with my quad it fell out of the air meaning it lost power nd fell to the ground nd nothing works now if I touch the positive nd negative on the nano rx the continuity meter beeps same issue with the vtx tbs vtx. Would like to try nd fix it any input would be great
Damn TBS!!! 😂 well done
More repair videos please good job
Thank you very much for this useful sharing 👍👍🙏❤️🥃
i have tbs crossfire model... i try to make some modification but I think i damage something... the range is so bad ... can i sed it to you 😁
Thanks for the video! keep em coming.
What happens when the capacitor next to the LEDs is broken off
how do plastic sockets and alike cope with the heat gun???
You have to protect them and be sure to not pass the melting temp... The smt ones do cope with normal flow temps but if you exceed they can melt
@@LivyuFPV Thank you!
I use a little bit of kapton tape on those white plastic sockets.....and try to avoid blasting them with hot air.....pretty sure I picked that up from you, Livyu
same was one wire disconected from board and mcu down.. no shield in the board....price big shield 0
"So...........yeah. Stop doing that" LMAO
one cap is missing, so the rx has no range anyways :)
Finding the short: apply enough current to cause it to heat up slightly at the short. spray with alcohol. see where it evaporates fastest.
Not the case here... The reg was heating like crazy... Changing reg same issue... Apply 3.3v at 3 amps maybe but the ideea was to explain to people :)
@@LivyuFPV you missed a significant part of the explanation. First rule of restoration: don't disturb anymore than you have to.
@@toddmarshall7573 well that is kind of a logical thing to do :) I was not really looking at fixing this but rather show that sometimes you cannot know what part is in short so the only thing to do is take them out one by one until you know :) do you have another technique except pushing lots of amps into the short and check the one that gets toasted? taking into consideration that one actually has a 3.3v power supply around
@@LivyuFPV yes...and so do you. You just skipped that step. And you don't need to push massive amps. Just enough to make the part hotter than normal and identify it with the alcohol. A Li-Ion cell will do the trick in a 3.3V application. Another good troubleshooting technique is using the diode function of the meter. For this you need something for comparison.
@@toddmarshall7573 ;)
Send me a message, I have tons of extra parts I would be willing to donate. I appreciate the videos and have been able to fix a lot of fc's and RX's that I fried starting in the hobby. I would like to see a video on the r9 mm, I had a few minis go bad and got them working but not by replacing the voltage reg the proper way but by jumping to the EN pin
I have about 15 of them in my WTF box. they tend to just crap out, out of nowhere!
You Bad souder
My crew and I could send u a tone of bad shit We destroyed if u like lots of crossfire stuff
Anything would do fine :)
Write me please on fb, thanks
@@LivyuFPV what your face book name
@@princefpv1 same like here :) I have a page you cand messager or Liviu Preda
@@LivyuFPV ill message u after ripping today bro
Thank you for sharing. I dont know what is all this foss about crossfire modules and recievers. I have ceveral modules and many recievers and some good numbers of drones. Crossfire has given me headake everytime I want to bind or connect it to the Betaflight. They really need to have some good programmers and designers or very soon no one give a dam about their produkt anymore. I am tired of it allready