I'm trying to install the latest firmware on an iMX6 but when I power on with the hidden button pressed all I get is a black screen. My TV detects that there is a signal and after about 15 seconds flickers briefly and then that's it. I've held in the button for over a minute, tried 2 different SD cards and 2 different TVs and the result is always the same. If I power on without the hidden button pressed then the box boots normally
Any suggestions as to what else I can try?
Any suggestions as to what else I can try?