Thursday, May 26, 2016

Nexus 9 System is corrupt error after OTA update

Hello, going to put this here if it helps anyone else out. Couldn't find a post that helped (there may be I might have not looked hard enough lol)

So after leaving it for a week today I let my Nexus 9 WiFi only do the latest OTA security update, halfway through it came up with an error and on reboot got stuck booting with the little Android fella on his back with a message saying it was corrupted.

First thing I went to do was install the factory stock image, but this would not let me as I had not unlocked the bootloader (and couldn't as I couldn't access the Dev menu in android previously). Tried a few other things including factory wipe/fastboot/etc and this is what fixed it for me

Note: you need ADB installed (plenty of ways to do that on XDA)

- Download latest OTA here
- Connect tablet to PC with USB
- On the recovery screen bring up the menu (Power button + up)
- Select 'Apply update from ADB'
- [Windows] Bring up CMD and navigate to the update location (Hold shift + right click brings up the option to open CMD in that folder location)
- Type 'adb sideload (ota file.zip)' in brackets is the file name of the download (Copy the file name and right click into CMD/Paste)
- Tablet should update and be working after that

I also wiped Cache after installing the image, whether you need to do that I don't know. Tablet is now back up and running. I had factory reset the unit before trying this, so I don't know if it will keep data. I assume it would do as OTA don't normally wipe data.

Hopefully this helps someone


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