[Nexus 7 Q&A, Help & Troubleshooting] vsrkmurthy:
Nexus 7 Flashing back to original state with image ""image-nakasi-jdq39.zip""

C:\adb>fastboot oem unlock

...

(bootloader) Bootloader is already unlocked

OKAY [ 0.022s]

finished. total time: 0.023s

C:\adb>fastboot erase boot

erasing 'boot'...

OKAY [ 1.015s]

finished. total time: 1.017s

C:\adb>fastboot erase cache

******** Did you mean to fastboot format this partition?

erasing 'cache'...

OKAY [ 1.392s]

finished. total time: 1.394s

C:\adb>fastboot erase recovery

erasing 'recovery'...

OKAY [ 0.937s]

finished. total time: 0.939s

C:\adb>fastboot erase system

******** Did you mean to fastboot format this partition?

erasing 'system'...

OKAY [ 1.164s]

finished. total time: 1.166s

C:\adb>fastboot erase userdata

******** Did you mean to fastboot format this partition?

erasing 'userdata'...

OKAY [ 7.555s]

finished. total time: 7.560s

C:\adb>fastboot flash boot bootloader-grouper-4.18.img

sending 'boot' (2096 KB)...

OKAY [ 0.271s]

writing 'boot'...

OKAY [ 0.742s]

finished. total time: 1.026s

C:\adb>fastboot reboot-bootloader

rebooting into bootloader...

OKAY [ 0.020s]

finished. total time: 0.022s

C:\adb>fastboot -w update image-nakasi-jdq39.zip

archive does not contain 'boot.sig'

archive does not contain 'recovery.sig'

archive does not contain 'system.sig'

archive does not contain 'vendor.img'

Creating filesystem with parameters:

Size: 6453985280

Block size: 4096

Blocks per group: 32768

Inodes per group: 8048

Inode size: 256

Journal blocks: 24620

Label:

Blocks: 1575680

Block groups: 49

Reserved block group size: 391

Created filesystem with 11/394352 inodes and 52512/1575680 blocks

Creating filesystem with parameters:

Size: 464519168

Block size: 4096

Blocks per group: 32768

Inodes per group: 7088

Inode size: 256

Journal blocks: 1772

Label:

Blocks: 113408

Block groups: 4

Reserved block group size: 31

Created filesystem with 11/28352 inodes and 3654/113408 blocks

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

Bootloader Version...: 4.18

Baseband Version.....: N/A

Serial Number........: 015d188422200619

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

checking product...

OKAY [ 0.030s]

checking version-bootloader...

OKAY [ 0.018s]

sending 'boot' (4944 KB)...

OKAY [ 0.682s]

writing 'boot'...

OKAY [ 0.587s]

sending 'recovery' (5446 KB)...

OKAY [ 0.691s]

writing 'recovery'...

OKAY [ 1.225s]

erasing 'system'...

OKAY [ 1.409s]

sending 'system' (471804 KB)...

OKAY [ 61.454s]

writing 'system'...

OKAY [ 34.620s]

erasing 'userdata'...

OKAY [ 7.413s]

sending 'userdata' (102525 KB)...

OKAY [ 12.599s]

writing 'userdata'...

FAILED (remote: (FileWriteFailed))

finished. total time: 136.188s

C:\adb>fastboot erase userdata

erasing 'userdata'...

FAILED (command write failed (Invalid argument))

finished. total time: 0.018s

C:\adb>fastboot devices

C:\adb>fastboot devices

015d188422200619 fastboot

C:\adb>fastboot erase userdata

******** Did you mean to fastboot format this partition?

erasing 'userdata'...

OKAY [ 8.628s]

finished. total time: 8.630s

C:\adb>fastboot oem lock

...

(bootloader) Bootloader is locked now.

OKAY [ 10.303s]

finished. total time: 10.308s

C:\adb>fastboot reboot

rebooting...

finished. total time: 0.021s

C:\adb>

Based on the above log report request you technologists where I did the mistake and what exactly is the problem that I am unable to get my nexus 7 back to its original state.

After boot, it stuck on start up LOGO - Image attached. Waited for 28 minutes at this stage and turned off the tab