I have a Zero v1.51, that during boot, only logs:
G12A:
to serial, never proceeds further than this.
Like many others have encountered, the maskrom button has fallen apart. I’ve tried bridging the pads in the button, as well as the pads it’s soldered to, but can’t get it to boot into maskrom mode.
Do I have any other options? I’m wondering if maskrom mode is exposed through gpio? Or is this chip bricked?