Google Nexus 7
The Nexus 7 running on Android 4.2 can be unrooted.

Google recently released an Over the Air (OTA) Android 4.2 (Jelly Bean) update for the 7in Nexus-branded tablet. The upgrade to the mobile operating software brings additions like Gesture Typing and Photosphere.

Android fans who rooted the Nexus 7 to enhance customisability may now wish to return to a stock firmware, either for the above update or to reclaim a warranty (voided after rooting). To unroot the Google Nexus 7, follow this tutorial.

IBTimes UK warns its readers it will not be held responsible for any damage to the device during installation. Users are urged to ensure proper back-up of data before proceeding and also to check that the tablet is factory unlocked and its battery is fully charged.

To Unroot Google Nexus 7 on Android 4.2 Firmware

  • Download the Google Nexus 7 toolkit (an alternate link is on the development page) and install programme on the computer
  • Start installed programme (this may take a few minutes) and refuse permission when prompted to update
    • Note: Do not worry if screen freezes when opening toolkit
  • Connect tablet to computer and enter Option 1, to install drivers
  • If the tablet is running Android 4.2, browse to Settings > About Tablet and tap Build Number seven times
    • Note: If tablet is running Android 4.1.2 or lower, skip above step and proceed
  • Now browse to Settings > Developer Options > Enable USB debugging and re-connect tablet to computer
  • Select Option 9 - to download, extract and flash Google factory stock ROM and then select Option 2 to download ROM
  • After ROM is downloaded, a prompt will appear, asking for permission to install, to which type Yes
  • After installation, complete set-up process on Nexus 7 and enable USB debugging for a second time
  • Now, select Option 3 in Nexus 7 toolkit and select Option 2 to re-lock bootloader

The Google Nexus 7, running Android 4.2, should now be unrooted.

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