How to fix dead DJI Mavic Pro battery using CP2112 (Works aslo with Phantom 4)

I would like to present how to repair batteries for DJI mavic pro (It also works with phantom 4).
The purple USB device is called CP2112. You can buy it on amazon, aliexpress or ebay
Link to DJI Killer software and schematics:
drive.google.com/file/d/17aeS...
Commands to send:
00 0024
00 0029
If you think you have received help, please donate to the author of the application. The information is provided directly in the DJI killer program

[@sidecendana]

Thank you my friend I am from Indonesia Your video is very helpful and I have tried to repair the DJI Mavic Pro battery and it worked. I would recommend your KZbin channel to anyone experiencing locked battery problems. success always for you

[@MARCIN12371]

Everything works great. Thank you very much, you are a master. 😁

[@user-uq6jv5hm5n]

segui el tutorial y funciono todo perfecto con dos baterias genericas , gracias!!

[@Mrotwailer]

Perfecto !!!!, he conseguido resucitar 2 baterias del Mavic Pro. Gracias !

[@calvinthorne5307]

Your video presentation has been exactly what I was looking for. I did a lot of research on what I could do with my Mavic1 battery that had gone into a fully drained condition. I used a 2 amp car battery charger to kick start the voltage then my LiPo battery charger to finish the charge. The only major error on your video is it is required to jumper the 12 volts on the Mavic battery to one of the main + power pins on the battery connector. This allows the Mavic battery circuit board to be powered up and then the Cp2112 mini board can talk to the battery (BMS) Battery Management System board. Now I can talk to the battery but having Unsealed, Cleared PF Flags, manually entering the codes 0024 and 0029, writing to the chip and then re-sealing the battery the battery will not take a charge from the Mavic charger. Solid green lamp stays on on my battery. If you read this let me know any other thoughts that might help me or you can PM me. Calvin

[@TheAdamjh]

Did u try to repeat the process?

[@michaelmaklaud7744]

Hi. U can download new version of the program

[@Xenialan]

Thanks for posting. What is the little board called that you’re soldering on to that connects to USB?

[@TheAdamjh]

CP2112

[@stephenlabella1974]

here is the Phantom 4 battery READ after clearing the PF using the CP 2112 and this software. Write Word 0x00

[@adelfomachado4190]

Qual taxa de descarga celulas 10c 20c

[@onemedia1109]

Can this process work after deflating a bulged battery. Its still charging normal but when inserted in the drone, the drone quickly draines it and reports critical low battery.

[@TheAdamjh]

Deflated battery is diffrent case. It can be chemicaly broken

[@angelvaca9232]

I made the connection without opening the battery and connected it together with its charger and was able to restore one, but my other battery recognizes it and reset its parameters with the software but it still does not turn on its LEDs or charge, what could it be? is for mavic 2 pro and the battery model is FB2

[@saxonrc]

Hi, Thanks for this video. I have downloaded the program, but I can't run it, it gives me some error. Did you have the same issue, or you could run the app from out of the box?

[@saxonrc]

Ignore this, I had to download the Microsoft Visual C++ 2015 Redistributable Update 3 RC, now it works perfectly, thanks again for the video

[@rostygreg4767]

Cannot read..error : could not perform SMBus read 0x00

[@angelvaca9232]

Is there any way to also know the battery chip?

[@rokag3332]

bravo le lien fonctionne

[@DanielMolina-st9sp]

have i sealed it after clear pf?

[@TheAdamjh]

There is no seal option in battery killer. Just click reset chip. It should seal by default.

[@GameWorld_SK]

Hello I tried it twice, but I have a problem that my battery flashed only when I charged it first time on my Imax B6 and what I remembered on it flashed two middle leds, but at that time I didnt have CP2112 and now when I connect it to original charger it doesnt flash. But when I did everything from your video, everything looked like in your video, only which was different is when in video in time 7:49 program wrote you "Reset chip successful !" in my case this line program didnt write me in both times, when I tried it. And after complete process battery doesnt work, for information I charged battery to the voltage about 12,44V. Please can you help me ? Thank you very much for your answer. 🙂

[@ovrboostSRT4]

Any luck I cant get my battery to stay on and I get ERROR: Could not perform SMBus read 0x00

[@elviejoperro3077]

Can you do this without opening the battery? Thanks

[@TheAdamjh]

It works without opening only with newer batteries. Mavic pro and Phantom 4 needs to be open because their I2C bus ports are inside the battery.

[@abangboncet8067]

Mine had error sbus reading. Any way to workaround this?

[@TheAdamjh]

That means either broken chip either you need to turn on battery and read data when battery is on

[@GokulKuwar-Npl]

error: could not perform smbus read 0x00 please help me

[@ovrboostSRT4]

same error for me on two batteries

[@MrJmack98]

I am getting a battery authentication error after doing this process to my Phantom 4 pro battery. Can you offer any assistance?

[@TheAdamjh]

can u send screenshot to my mail? [e-mail]

[@saxonrc]

To remove that you have to: ( these comes after you made the steps above ) - charge the battery full - reflash the drone with the latest firmware with the new battery in it - connect with the CP2112 again and then: connect, read info, unseal, clear and reset the chip. Had the same issue, but this fixed it.

[@ocristus18]

@@saxonrc Hello friend, I have the same battery signal error problem after doing the process, what should I do to eliminate it, thank you

[@saxonrc]

​ @ocristus18 Hi, if the steps above don't help, go back to the battery killer app, and do the process again but at the end hit Unseal - Clear PF - Unseal - Clear PF2 ( I am not sure if I clicked on Reset Chips as well, it was for a while ). I had 2 batteries with which I had to make this, but now it is all good. I hope this will help.

[@MrPABABASOfff]

@@TheAdamjh Hi.I have the same problem.Please tell me in detail how to fix it.Thanks!

[@juliuscasar9354]

Have recovered my Batteries. But it says now in the APP Battery not authentificated. Authentifizierung der Batterie fehlgeschlagen.

[@juliuscasar9354]

Have tried to Do the firmware Update wirh the battery in the drone but it stops ar 32% and says battery Update failure

[@juliuscasar9354]

I have fixed one Battery now. In the program is a authentification Button. Do this and it will work.

[@MrPABABASOfff]

@@juliuscasar9354 Hi.I have the same problem.Please tell me in detail how to fix it.Thanks!

[@juliuscasar9354]

@@MrPABABASOfff Please unseal, clear pf, write word 00 0024, weitere word 00 0029, reset chip, unseal, authentification, seal.

[@mauriciourotondo6619]

Hi, i'm Mauricio from argentina Do not panic yet, this is normal on those devices, this happens when the pack is unsealed and the MSP430 detects that. It immediately throws that error. The only way to solve the error is by putting the battery after it was repaired to drone, changing battery_type parameter to 2 or 3, and then you must use Drone-Hacks to flash drone firmware again. The firmware doesn't need to be latest, but it must contain battery firmware. The point here is to let the drone reflash the MSP430 firmware so it will stop complaining about the Authentication error.