ESC 1 & 2 Error after Firmware Downgrade and NLD Go 4 App patch

Hello,

I just downgraded the Firmware of my Mavic Pro Platinum to V01.04.0300 and patched DJI GO 4 (Android) to enable FCC mode. I also enabled 'Boost' mode in de DJI GO 4 settings file.

At first all went okay but then I tried to downgrade the firmware to V01.03.0700 to be able to disable the altitude settings.  The downgrading process got stuck on 65%, I waited a long time and  but nothing happened. Then I found out that the PC (The NLD software) wasn't able to find the drone anymore. In the Windows Device Manager you could see a constant on/off blinking of the DJI device. In other words Windows detected the drone but it disappeared again immediately after the Drone (DJI device) was found. So the NLD software wasn't able to finish the downgrading process.

I had to reboot both the PC & Drone several times but nothing happened, my Mavic seemed to be transformed in a Brick. After many many reboots I finally managed to reconnect and re-flashed the drone to V01.04.0300. I noticed that during the re-flash the drone got very hot. Once re-flashed I tried the drone but I immediately got an ESC error. ESC 1 & 2 signaled an error and it looks like the ESC board  seems fried....

What now? How could this happen?

Regards,
Mac

I Found out what the problem was.. the firmware gave me the esc errors. I reinstalled the original firmware to V01.04.0500 using DJI Assistant 2 and the ESC errors disappeared. Then I used DJI Assistant 2 again to set the firmware to V01.04.0100 which also worked. Still without the ESC errors.

It seems that the NLD firmwares don't work for the Mavic Pro Platinum which use a different ESC board then the normal Mavic Pro.

Could it be that the firmware of the normal Mavic Pro is used by NLD on the Mavic Pro Platinum? I guess that the firmwares are different.

BTW the NLD Go 4 App on Android works like a charm. I'm now in FCC mode and even the Boost functions work here in Europe. I've got at least 30% more range now. Also the NFZ patch works. The only thing missing for me is the Altitude Removal.

Please advice on how to lower the firmware in a decent way (without the ESC errors) on my Mavic Pro PLATINUM to V01.03.0700 so I can disable Max Altitude.