[Nexus 7 Q&A, Help & Troubleshooting] ashwin123:
Here you go...

C:\adt-bundle-windows-x86_64\sdk\platform-tools>adb devices

* daemon not running. starting it now on port 5037 *

* daemon started successfully *

List of devices attached

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot devices

015d21d9155ff811 fastboot

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot erase boot

erasing 'boot'...

OKAY [ 1.123s]

finished. total time: 1.123s

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot erase cache

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

erasing 'cache'...

OKAY [ 1.498s]

finished. total time: 1.498s

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot erase recovery

erasing 'recovery'...

OKAY [ 1.045s]

finished. total time: 1.061s

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot erase system

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

erasing 'system'...

OKAY [ 1.404s]

finished. total time: 1.404s

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot erase userdata

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

erasing 'userdata'...

OKAY [ 9.376s]

finished. total time: 9.376s

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot oem unlock

...

(bootloader) Bootloader is already unlocked

OKAY [ 0.016s]

finished. total time: 0.031s

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot flash bootloader-groupe

r-4.13.img

unknown partition 'bootloader-grouper-4.13.img'

error: cannot determine image filename for 'bootloader-grouper-4.13.img'

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot flash bootloader bootlo

ader-grouper-4.13.img

sending 'bootloader' (2096 KB)...

OKAY [ 0.312s]

writing 'bootloader'...

OKAY [ 10.468s]

finished. total time: 10.780s

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot reboot-bootloader

rebooting into bootloader...

OKAY [ 0.016s]

finished. total time: 0.016s

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot -w update image-nakasi-

jop40d.zip

archive does not contain 'boot.sig'

archive does not contain 'recovery.sig'

archive does not contain 'system.sig'

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

Bootloader Version...: 4.13

Baseband Version.....: N/A

Serial Number........: 015d21d9155ff811

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

checking product...

OKAY [ 0.031s]

checking version-bootloader...

OKAY [ 0.016s]

sending 'boot' (4942 KB)...

OKAY [ 0.655s]

writing 'boot'...

OKAY [ 0.749s]

sending 'recovery' (5444 KB)...

OKAY [ 0.749s]

writing 'recovery'...

OKAY [ 1.014s]

erasing 'system'...

OKAY [ 1.466s]

sending 'system' (477136 KB)...

OKAY [ 64.257s]

writing 'system'...

OKAY [ 36.395s]

erasing 'userdata'...

OKAY [ 7.504s]

formatting 'userdata' partition...

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

sending 'userdata' (102525 KB)...

writing 'userdata'...

OKAY [ 29.188s]

erasing 'cache'...

OKAY [ 1.498s]

formatting 'cache' partition...

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

sending 'cache' (9052 KB)...

writing 'cache'...

OKAY [ 4.009s]

rebooting...

finished. total time: 147.685s

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot oem lock

...

(bootloader) Bootloader is locked now.

OKAY [ 10.670s]

finished. total time: 10.670s

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot reboot

rebooting...

finished. total time: 0.016s

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot erase boot

erasing 'boot'...

OKAY [ 0.998s]

finished. total time: 1.014s

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot erase cache

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

erasing 'cache'...

OKAY [ 1.295s]

finished. total time: 1.295s

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot erase recovery

erasing 'recovery'...

OKAY [ 0.936s]

finished. total time: 0.952s

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot erase system

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

erasing 'system'...

OKAY [ 1.295s]

finished. total time: 1.295s

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot erase userdata

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

erasing 'userdata'...

OKAY [ 8.830s]

finished. total time: 8.830s

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot oem unlock

...

(bootloader) erasing userdata...

(bootloader) erasing userdata done

(bootloader) erasing cache...

(bootloader) erasing cache done

(bootloader) unlocking...

(bootloader) Bootloader is unlocked now.

OKAY [ 22.292s]

finished. total time: 22.292s

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot flash bootloader bootlo

ader-grouper-3.41.img

sending 'bootloader' (2092 KB)...

OKAY [ 0.296s]

writing 'bootloader'...

OKAY [ 10.468s]

finished. total time: 10.780s

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot reboot-bootloader

rebooting into bootloader...

OKAY [ 0.031s]

finished. total time: 0.031s

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot -w update image-nakasi-

jzo54k.zip

archive does not contain 'boot.sig'

archive does not contain 'recovery.sig'

archive does not contain 'system.sig'

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

Bootloader Version...: 3.41

Baseband Version.....: N/A

Serial Number........: 015d21d9155ff811

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

checking product...

OKAY [ 0.031s]

checking version-bootloader...

OKAY [ 0.016s]

sending 'boot' (4896 KB)...

OKAY [ 0.671s]

writing 'boot'...

OKAY [ 0.733s]

sending 'recovery' (5240 KB)...

OKAY [ 0.702s]

writing 'recovery'...

OKAY [ 0.686s]

erasing 'system'...

OKAY [ 1.248s]

sending 'system' (446268 KB)...

OKAY [ 61.402s]

writing 'system'...

OKAY [ 34.726s]

erasing 'userdata'...

OKAY [ 7.441s]

formatting 'userdata' partition...

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

sending 'userdata' (102525 KB)...

writing 'userdata'...

OKAY [ 29.921s]

erasing 'cache'...

OKAY [ 1.498s]

formatting 'cache' partition...

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

sending 'cache' (9052 KB)...

writing 'cache'...

OKAY [ 3.994s]

rebooting...

finished. total time: 143.224s

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot oem lock

...

(bootloader) Bootloader is locked now.

OKAY [ 10.686s]

finished. total time: 10.686s

C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot reboot

rebooting...

finished. total time: 0.016s

C:\adt-bundle-windows-x86_64\sdk\platform-tools>