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2013 Nexus 7 Discussion Forums (2nd Generation, Nexus 7 FHD, Nexus 7.2) => New Nexus 7 Root, Hacks, Mods And Development (2nd Gen) => Topic started by: S.Prime on January 24, 2015, 03:24:13 PM
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After receiving 5.0 and subsequent OTA's on your Rooted Nexus Tablet, You will find that running the install routine will fail. This guide will allow you to install the next version of Android 5 without losing your applications or data. For the process we will be using Wugfresh's Nexus Root Toolkit, which is available from the link below. The toolkit is free, but I urge that you join me and contribute to his work.
WugFresh Nexus Root Toolkit download (http://www.wugfresh.com/nrt/)
Disclaimer: As always we are not responsible for any data, applications, or damage to your device, but we have tested and found no issues with the following process. Be sure to read the entire guide before starting the process.
Step One
Go to Settings by swiping down from the top of the screen, tap Storage and note the Total Space on your device. There are some rare cases when this process will not show the full storage space on your Nexus device, so this step gives you a verification point on completion.
Step Two
Backup all of your data and apps. I suggest a combination of Titanium Backup and cloud storage like Google Drive or DropBox.
Step Three
Download and install WugFresh's Nexus Root Toolkit on your computer. The installation process in detailed on WugFresh's website and the on screen prompts are easy to follow. Connect your Nexus device to the computer by your USB cable and allow the Toolkit to detect your tablet and version of Android, then double check and verify that it has detected the correct device and version of Android and allow the Toolkit to download the suggested support files
Step Four
Select "Flash Stock + Unroot". Viewable below but Note that my screenshots are for a Nexus 10
(http://i1254.photobucket.com/albums/hh618/Prime_N7/Photobucket%20Desktop%20-%20DELL-XPS/Nexus-10_zps028d0708.jpg)
Step Five
In the "Which Verion of Android" screen, shown below, select the version of Android and the build that you wish to update to in the drop down box, again note I am using a Nexus 10, so make sure that you have the correct device selected. In the Choice section select "Automatically download + extract the factory image selected above for me". Then in Settings select "No Wipe Mode" and "Force Flash Mode". the no wipe mode will preserve the data and Apps on your device. DO NOT select "Post-Flash Factory Reset" or you will wipe all of your data and Apps. Then tap OK and the process will complete on its own.When the process completes and the device restarts you will note that each app will be listed as updating to the new version.
(http://i1254.photobucket.com/albums/hh618/Prime_N7/Photobucket%20Desktop%20-%20DELL-XPS/Nexus-10-1_zpsbd76c9d2.jpg)
Step Six
From the main Toolkit screen select Root with install Custom Recovery and your device will be rooted again with TWRP installed and all of your data and apps will be retained.
Step Seven
Verify that the storage size matches the size you noted in step one. If the size does not match you will have to perform a factory reset, which will erase all of your data and apps, but the tablet will function correctly with the reduced storage until you are prepared to do a factory reset. Remember to copy your Titanium backup from the device to a computer out cloud storage before a factory reset, also note that some apps cannot be restored from Titanium backup for example your settings in Nova Launcher or Boxer email, so use the internal backup for Nova and be aware that Titanium backup is not a 100% failsafe.
I have personally tested the above process on The Nexus 7 2012 WiFi, The Nexus 7 2013 WiFi, and the Nexus 10, but I cannot anticipate every situation that could arrise, so post any problems that you have and I will try to address them.
Post your questions or issues Here (http://www.Nexus7Forum.com/index.php?topic=3784.0)
S.Prime