[Nexus 7 Q&A, Help & Troubleshooting] zxcv654:
Bootloop after flashing - do I need to send this for repair

I'm a noob, but I can follow directions.

I've been working on this for days without a solution

I've flashed various ways and they typically report success. Then I get a bootloop on the Google splash page.

No matter how long I leave the device I never get to the Nexus boot screen.

This was my latest attempt: (BTW, I did swap in bootloader-grouper-4.23.img from V as recommended in the guide)

===================================

c:\ANDROID>fastboot erase boot

erasing 'boot'...

OKAY [ 0.021s]

finished. total time: 0.022s

c:\ANDROID>fastboot erase cache

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

erasing 'cache'...

OKAY [ 0.022s]

finished. total time: 0.022s

c:\ANDROID>fastboot erase recovery

erasing 'recovery'...

OKAY [ 0.022s]

finished. total time: 0.022s

c:\ANDROID>fastboot erase system

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

erasing 'system'...

OKAY [ 0.022s]

finished. total time: 0.022s

c:\ANDROID>fastboot erase userdata

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

erasing 'userdata'...

OKAY [ 0.033s]

finished. total time: 0.033s

c:\ANDROID\nakasi-jwr66y-factory-1e503532>fastboot flash bootloader bootloader-grouper-4.23.img

sending 'bootloader' (2100 KB)...

OKAY [ 0.285s]

writing 'bootloader'...

OKAY [ 0.593s]

finished. total time: 0.880s

c:\ANDROID\nakasi-jwr66y-factory-1e503532>fastboot reboot-bootloader

rebooting into bootloader...

OKAY [ 0.020s]

finished. total time: 0.020s

c:\ANDROID\nakasi-jwr66y-factory-1e503532>fastboot -w update image-nakasi-jwr66y.zip

archive does not contain 'boot.sig'

archive does not contain 'recovery.sig'

archive does not contain 'system.sig'

Creating filesystem with parameters:

Size: 14442037248

Block size: 4096

Blocks per group: 32768

Inodes per group: 8176

Inode size: 256

Journal blocks: 32768

Label:

Blocks: 3525888

Block groups: 108

Reserved block group size: 863

Created filesystem with 11/883008 inodes and 96825/3525888 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...: 4.23

Baseband Version.....: N/A

Serial Number........: 015d24a427441c19

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

checking product...

OKAY [ 0.040s]

checking version-bootloader...

OKAY [ 0.023s]

sending 'boot' (4896 KB)...

OKAY [ 0.666s]

writing 'boot'...

OKAY [ 0.169s]

sending 'recovery' (5432 KB)...

OKAY [ 0.736s]

writing 'recovery'...

OKAY [ 0.190s]

erasing 'system'...

OKAY [ 0.020s]

sending 'system' (529061 KB)...

OKAY [ 66.072s]

writing 'system'...

OKAY [ 23.779s]

erasing 'userdata'...

OKAY [ 0.032s]

sending 'userdata' (137526 KB)...

OKAY [ 17.141s]

writing 'userdata'...

OKAY [ 6.261s]

erasing 'cache'...

OKAY [ 0.024s]

sending 'cache' (9052 KB)...

OKAY [ 1.132s]

writing 'cache'...

OKAY [ 0.427s]

rebooting...

finished. total time: 116.862s

===================================

It looks to me like everything executed correctly.

Yet, my sad N7 just keeps looping and looping.

Have I missed anything?

Do I need to send this in for hardware repair?

Many thanks in advance

:confused: