[GUIDE] Nexus 7 - Factory Image Restore

[acstewart82]

Received error unknown partition 'system.img'
Error :cannot determine image file name for 'system.img'

 

[2defmouze]

Received error unknown partition 'system.img'
Error :cannot determine image file name for 'system.img'

Did you try switching to a rear usb port? Also if you didn't use 7zip to unzip the archive try again doing so.

Sent from my Nexus 4 using Tapatalk 2

 

[acstewart82]

No rear use port as I'm on a netbook. I did use 7zip to extract file.

 

[2defmouze]

No rear use port as I'm on a netbook. I did use 7zip to extract file.

I would try another computer for this.. Possible the netbook just won't cut it.

Sent from my Nexus 4 using Tapatalk 2

 

[acstewart82]

It's the same netbook I used to unlock bootloader and root said Nexus 7, galaxy Nexus and galaxy s3 with no issues.

 

[2defmouze]

It's the same netbook I used to unlock bootloader and root said Nexus 7, galaxy Nexus and galaxy s3 with no issues.

Not sure what else I could recommend. You could try using a toolkit like Wugs if you want, sometimes people have success that way if this method fails, and vice versa. I'd still try a different computer.

Sent from my Nexus 4 using Tapatalk 2

 

[DirkBelig]

The Wug's Toolkit doesn't work with 4.3 as I've learned after hours of bashing my brains out. He says the SDK was changed, so he needs to update his toolkit to 1.6.5 to get it working.

 

[2defmouze]

The Wug's Toolkit doesn't work with 4.3 as I've learned after hours of bashing my brains out. He says the SDK was changed, so he needs to update his toolkit to 1.6.5 to get it working.

Makes sense...

To the earlier poster.. If you would check the Nexus 4 Rooting section, Factory restore guide (link in my signature as well) there was a user earlier with a similar issue who was able to fix it downloading some updated files from Google. Haven't had a chance to look into it yet myself but it might help you to see what he did and try it out.

Sent from my Nexus 4 using Tapatalk 2

 

[Shiftastic]

Great job on the guide. Followed step by step and was able to upgrade my nexus 7 to 4.3

Thanks

 

[ethanhunt2202]

Are you trying to flash the correct version, you don't have the 3g Nexus 7 and are trying to flash the wifi only factory image?

If that's not the case.. Try reinstalling the drivers and switching usb ports, try to use a rear one. What system are you using?

Sent from my Nexus 4 using Tapatalk 2

Thank you for your help. I can do it.

 

[waimyooo]

Thanks

 

[Randy Sidberry]

I did everything and now my nexus will not go off nor will it go pass the screen that says GOOGLE when it starts up. also on the bottom I see a image of a lock. I attempted to do the steps over but my terminal just tells me it's waiting for my nexus to restart. PLEASE HELP ME

 

[acstewart82]

OK so I was able to flash the 4.2.2 system img via the tool kit and managed to fix my nexus 7. Thanks for all your help.

 

[2defmouze]

I did everything and now my nexus will not go off nor will it go pass the screen that says GOOGLE when it starts up. also on the bottom I see a image of a lock. I attempted to do the steps over but my terminal just tells me it's waiting for my nexus to restart. PLEASE HELP ME

Just hold power until it boots down/reboots and try again, carefully following the directions.

Sent from my Nexus 4 using Tapatalk 2

 

[bronsonelliott]

Dude!! Great instructions. Just finished the process and now running with the new OS. Thanks!!!!

 

[UCFKnight2008]

I had an error imaging System. Unknown error. Changed USB ports like you suggested on page 1 and BAM! it worked.

Thank you so much. Now off to play with 4.3.

 

[vitak124]

I followed these instructions and everything was fine until i had to use the <sudo fastboot flash bootloader bootloader-grouper-4.23.img> my N7 download file had bootloader-tilapia-4.23.img, instead.
I tried that. Seemed to write alright. Did the <sudo fastboot reboot-bootloader> and my N7 still shows grouper. I've switched USB ports and same result. Any ideas?

 

[vitak124]

Nvm. I'm an *****. I just realized I was tired, last night, and downloaded the wrong file. .

 

[Randy Sidberry]

archive does not contain 'boot.sig'
archive does not contain 'recovery.sig'
archive does not contain 'system.sig'
--------------------------------------------
getvar:version-bootloader FAILED (remote: (Timeout))
macintosh-9:tools sneed_sam_sneed$

I'm using a mac and keep getting this as a response to the upload.

 

[dlcoronado]

Something went wrong during the OTA update to 4.3 and my Nexus 7 was soft-bricked. Decided to reset factory image. Everything was going smoothly, but for the life of me I couldn't get this to advance beyond "Sending System." Trying different cables and usb ports didn't help. Flashing images in pieces didn't work either. Many hours later, I finally took a chance on turning off Airport (Wi-Fi) on my MacBook 2,1 (circa 2007), Mac OS 10.6.8. And voila! I was able to flash system.img. Followed the remaining steps and got tablet working again. Phew!