After endless hours of researching various threads, on stack overflow and others, I think I have found the problem with the recent spate of bricked Nexus 7's.
It appears that something is corrupting partitions, what/why I don't know. However, the fix is fairly straightforward once you can get the device connected to your pc.
FYI, the device took quite a while to reboot, the warning to be patient is valid, give the device at least 20 minutes. Make sure to unplug device from PC after NRT has done its magic. Cycle power if needed.
Hope this helps!
It appears that something is corrupting partitions, what/why I don't know. However, the fix is fairly straightforward once you can get the device connected to your pc.
- First off I updated my Android SDK and ADB drivers.
- I then used the driver inspector element of WugNRT to identify and delete all previous instances of an Android USB device, this forced the install of the new ADB driver as soon as I attached the Nexus 7 in bootloader mode. Note, if possible, attach device to PC using original USB cable (this seems to solve a lot of problems).
- Once I confirmed that the device was recognized using fastboot devices, I locked and then unlocked the bootloader, which apparently resets the device to factory state and cures some corrupted partition issues. This clearly did something as most of the error messages I was receiving disappeared.
- I then formatted cache, system, user data, again to clear up any corrupted partitions
- at this point, I updated NRT and forced NRT to download and install the factory image, using the soft-bricked options.
- WIN!
FYI, the device took quite a while to reboot, the warning to be patient is valid, give the device at least 20 minutes. Make sure to unplug device from PC after NRT has done its magic. Cycle power if needed.
Hope this helps!
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