Hey there!
I just tried to update my Auro H2O via Wifi to the new 3.12 software version. It showed the update screen with its animation and everything looked normal. So the Kobo rebooted and showed something "random".
I tried to restart it after a few minutes (just to ensure that I don't interrupt the update process) and now I guess, it's bricked!
If I press the power button, the light near the button turns on, the screen flashes one/two times white-dark-white, but withtout any screen content. The same with the reset hole.
Any ideas how to rescue him, without opening or use of warranty?
Thank you very much!