Last month, I experienced exactly the same problem after replacing a part in my friend’s phone. The system kept displaying an error message because the original microcontroller has a unique digital signature encrypted by the manufacturer. After researching this issue on technical forums, I realized that I needed to use equipment equipped with an active decoding chip. In the end, I decided to test a Deji battery to see if its printed circuit board handled this protocol better, and after a reboot, the device’s status indicator returned to normal. In fact, it’s the architecture of the printed circuit board assembly (PCBA) that needs to be analyzed to anticipate future software updates.