I have an EMX module with 4.3 SDK on a custom board that worked for a while on a customer site, but the display would go blank (black) randomly and the only way to bring it to life was to cycle power.
I received the board today and it doesn’t boot up. When I connect to it with COM port and say run ®it says Bad Firmware.
This board was tested before shipping to customer and as I said was somewhat working. My question is that what can cause the Tiny Bootloader to corrupt?