I tried flashing my Acer Iconia tablet with Android Nougat (NMF26U), following the Google directions, but it failed during executing
What can or should I do to try and restore my device to any working state?
target reported max download size of 134217728 bytes
sending 'bootloader' (32980 KB)...
OKAY [ 1.110s]
FAILED (remote: partition table doesn't exist)
finished. total time: 1.120s
rebooting into bootloader...
OKAY [ 0.004s]
finished. total time: 0.005s
< waiting for any device >
The terminal hasn't updated since that, and the device shows no signs of life except it causes the Windows 10 "Device Manager" to update/refresh about once a second. This makes me believe that it's such in a fast bootloop, which causes problems mentioned below.
The device itself does not respond to any combination of button presses or holds, which may be a result of the fast bootloop not allowing the device to recognize longer button holds.
adb devices no longer sees the device at all, and neither does Windows. The screen remains completely black, and there are no indicator lights on the device.
I am unable to use the terminal or any other tools to recognize the device over USB cable, except for the "Device Manager" refreshes explained above. The buttons are completely unresponsive. I have tried disconnecting and reconnecting the battery ribbon, but the device returns to the exact state it was in before the hard power cycle.