HTC One M9 in weird boot loop
I have an HTC One M9 that is being super weird. Its stuck in what looks like fastboot mode and reboots every minute or so. OK..no big deal. It looks like someone tried flashing a custom recovery and failed. When I go to recovery mode or download mode, I get "failed to boot to X mode".
Figured ok, I'll check things out in ADB. ADB doesn't list it as being seen and I can't send any commands to it. I would write it off right there except that when I run a logcat and reboot the phone, ADB sees the phone disconnect. So the phone is communicating with ADB on some level, ADB just doesn't detect it.
I'm much more comfortable with Samsung boot issues. Anyone know anything about HTC?