I've been a drone pilot for 5 years. In July 2020 I bought a Phantom 3 Advanced from a friend, everything was working perfectly until when trying to make a flight, he called but then hung up and after that he didn't call again, there was no drop or any abnormal fact. I have 3 batteries and they are all great. When attempting to start the aircraft, the battery leds go up and then go out before the aircraft even gives any sign of life. I opened it and checked the main board, there is no sign of damage, neither burned components, nor broken welds, the board appears to be in perfect condition. Could the main board burn out ?

I've been a drone pilot for 5 years. In July 2020 I bought a Phantom 3 Advanced from a friend, everything was working perfectly until when trying to make a flight, he called but then hung up and after that he didn't call again, there was no drop or any abnormal fact. I have 3 batteries and they are all great. When attempting to start the aircraft, the battery leds go up and then go out before the aircraft even gives any sign of life. I opened it and checked the main board, there is no sign of damage, neither burned components, nor broken welds, the board appears to be in perfect condition. Could the main board burn out ?