[Nexus 7 Q&A, Help & Troubleshooting] susanjm:
N7 2013 Stuck at Google screen - Help with Wug's NRT

My N7 (2013 - WiFi only) stopped booting up properly last week. It was running 5.1.1 and is unlocked (unlocked it last year when the same thing happened to my husband's and I couldn't fix it.)

I've been trying to use Wug's NRT to fix my problem and it doesn't seem to be working. I am connecting to the N7 according to the live log. When I run "Flash Stock & Unroot" with "Soft-Bricked/Bootloop" selected I get the following result:

Flash Stock + Unroot. . .

-------------------------------------

sending 'bootloader' <3911 KB>. . .

OKAY [ 0.140s]

writing 'bootloader' . . .

FAILED <remote: flash write failure>

finished. total time: 90.667s

rebooting into bootloader. . .

OKAY [ -0.000s]

finished. total time -0.000s

sending 'boot' <7204 KB>. . .

OKAY [ 0..281s]

writing 'boot' . . .

FAILED <remote: flash write failure>

finished. total time: 90.106s

rebooting into bootloader. . .

OKAY [ 0.016s]

finished. total time: 0.016s

erasing 'cache' . . .

And there it sits ... I've waited as long as 90 minutes with nothing happening beyond this point.

I have tried different USB ports on the PC and different USB cables with no difference in behaviour.

Prior to trying to use WNRT I did try both wiping the cache and doing a factory reset from recovery. (I can no longer seem to get to recovery ...) When I tried wiping cache I got this:

E: Can't mount /cache/recovery/last_log

E: Can't open /cache/recovery/last_log

E: failed to mount /cache (Invalid argument)

E: Can't mount /cache/recovery/last_install

E: Can't open /cache/recovery/last_install

E: failed to mount /cache (Invalid argument)

E: Can't mount /cache/recovery/last_kmsg

E: Can't open /cache/recovery/last_kmsg

E: Failed closing /dev/block/platform/msm_sdcc.1/by-name/misc (I/O error)

E: failed to mount /cache (Invalid argument)

When I tried to do a factory reset I got:

-- Wiping data . . .

Formatting /data . . .

E: failed to mount /cache (Invalid argument)

Formatting /cache . . .

E: failed to mount /cache (Invalid argument)

E: Can't mount /cache/recovery/log

E: Can't open /cache/recovery/log

E: failed to mount /cache (Invalid argument)

E: Can't mount /cache/recovery/last_log

E: Can't open /cache/recovery/last_log

E: failed to mount /cache (Invalid argument)

E: Can't mount /cache/recovery/last_install

E: Can't open /cache/recovery/last_install

E: failed to mount /cache (Invalid argument)

E: Can't mount /cache/recovery/last_kmsg

E: Can't open /cache/recovery/last_kmsg

Data wipe complete.

E: failed to mount /cache (Invalid argument)

E: Can't mount /cache/recovery/log

E: Can't open /cache/recovery/log

E: failed to mount /cache (Invalid argument)

E: Can't mount /cache/recovery/last_log

E: Can't open /cache/recovery/last_log

E: failed to mount /cache (Invalid argument)

E: Can't mount /cache/recovery/last_install

E: Can't open /cache/recovery/last_install

E: failed to mount /cache (Invalid argument)

E: Can't mount /cache/recovery/last_kmsg

E: Can't open /cache/recovery/last_kmsg

E: Failed closing /dev/block/platform/msm_sdcc.1/by-name/misc (I/O error)

E: failed to mount /cache (Invalid argument)

Am I completely out of luck here? Thanks in advance for reading this and possibly offering suggestions :)

Susan