Nexus 7 4.2 OTA update error

[mr_gem]

I always encounter this problem when updating through OTA, mine is stock and rooted, how can I solve this without wiping all my data guys, thanks a lot !

Sent from my Nexus 7 using xda premium

 

[Casanub]

I always encounter this problem when updating through OTA, mine is stock and rooted, how can I solve this without wiping all my data guys, thanks a lot !

Sent from my Nexus 7 using xda premium

It seems you have CWM or some such installed over the stock recovery, just flash the recovery to stock or use CWM and flash to 4.2.1 that way

 

[mr_gem]

It seems you have CWM or some such installed over the stock recovery, just flash the recovery to stock or use CWM and flash to 4.2.1 that way

How can I flash the recovery to stock ? Thanks.

Sent from my Nexus 7 using xda premium

 

[shaneydroid]

Have you manually altered any system files or manually installed or overwritten a system app? That gives me the same error.

 

[Casanub]

How can I flash the recovery to stock ? Thanks.

Sent from my Nexus 7 using xda premium

I take it when you originally flashed to CWM, you never backed up your stock recovery? If not then you can flash back to stock with the "nakasig" image from here - https://developers.google.com/android/nexus/images#nakasig scroll down to Nexus 7.

 

[Lordops]

Same problem but not rooted

I got the same problem aswell. Altough i did never root my Nexus 7. I got this error as fast as i wanted to update the device. i have tried to push the update to it via the computer via android sdk (Manual update) It wont work. I get the error following "Assert failed: apply_patch_check (emmc:/Dev/block/platform/sdhci-tegra.3/by_name/lynx 500736" and so on. The version is "JZO54K". The Nexus 7 model is a 32 gb WIFI version. Any solution?