[Thinkpad Tablet General] joesnose:
***PLEASE DO NOT SKIP THE INSTRUCTION THAT SAYS MAKE A BACKUP*****

Lots of people are requesting help after not making a backup. And while people are able to help, the files are very large and takes up considerable bandwidth. Much better to EASILY create your own backup.

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First of all a BIG thanks to [MENTION=997923]ionioni[/MENTION], this is all his work i am just re-uploading files and some sort of instructions. Much of the instructions are also lifted from ionioni, so thanks from me too!

That's right sources here: https://twrp.me

There Is currently no xposed support for intel 64 bit android :(

Neither I or the developer take any responsibility for damage to yourself or your tablet, by carrying out anything written here you accept full liability for your actions. I am quite sure xda forums feel the same.

****BIG WARNING , This is ONLY for the Yoga Tab 3 Pro models YT3-X90(F|X|L) Intel Atom powered CherryTrail SoC devices flashing any of these files to another device will more than likely result in BRICK!!****

ANOTHER BIG NOTE.....lollipop can only be rooted using supersu version 2.46 whilst marshmallow version ,as of writing, can ONLY get root using magisk!

You should backup all important data before attempting any of this as you will be losing all data during the process. Titanium backup is good for backing up and restoring apps, other personal files can be moved to external sd or copied to computer.

First off you will need to have fastboot installed on your PC if you havn't already. Find it here......

For windows. https://dl.google.com/android/repository/platform-tools-latest-windows.zip

For Mac. https://dl.google.com/android/repository/platform-tools-latest-darwin.zip

For Linux. https://dl.google.com/android/repository/platform-tools-latest-linux.zip

To gain ROOT access.....

1. download and extract the twrp.img file from the zip attached (YOU MUST EXTRACT FROM THE ZIP!!!) and copy supersu.zip or magisk.zip to tablets external memory card. https://download.chainfire.eu/696/SuperSU/ (LOLLIPOP only supersu v2.46 is supported, other versions cause bootloop) or https://xdaforums.com/apps/magisk/official-magisk-v7-universal-systemless-t3473445 for MARSHMALLOW.

2. unlock your tab if is not unlocked (this is mandatory in order to boot custom images like TWRP recovery):

a) Enable developer options ( Go settings, at bottom select "About tablet" then press "Build number" 7 times. congrats you are now a developer.)

b) Go back to settings and now at the bottom there is a new option "developer options" in developer options enable "OEM unlocking"

3.Restart in fastboot mode (hold volume + while powering on tablet)

4. In the same foler you have extracted your TWRP.img (in windows) hold shift key while right clicking in the explorer window, select open command window here.

5. At the command prompt (black window that opens) type "fastboot oem unlock" for LOLLIPOP or "fastboot flashing unlock" for MARSHMALLOW. at this point you will be prompted that you want to delete all data, this is obviously a security measure that cannot be avoided.

6. go to step 7.

7. In command window (the little black window you opened earlier) type "fastboot boot twrp-2.8.7.0(6)-x90.img" your tablet should now boot to TWRP. ( This is a live session TWRP has not been flashed to your tablet)

******MAKE A TWRP BACKUP!!!!!!!!!!********* DO NOT SKIP THIS STEP.

Modifying system files will mean that you are unable to take Lenovo OTA Updates, the only way to install new updates is to later restore your TWRP stock backup, then reROOT. thats just the way it is i am afraid.

8. in TWRP install SuperSU.zip (lollipop) or magisk.zip (marshmallow) located at your external memory card.

9. Thats it enjoy Your rooted tablet.

10. If you experience time changing upon reboot use your favourite method to edit build prop, I used buildprop editor found in the playstore. Find "persist.sys.timezone" and change it to your location, I had to set mine to Europe/London.

PS...your tablet will hang on every boot at bootloader error 3 to warn about the unlocked bootloader, PLEASE DO NOT lock your bootloader, this is a small annoyance and makes brick recovery much easier. (just restore your lovely TWRP stock backup.

In order to install new Lenovo OTA update you must restore your TWRP stock backup, then take the OTA, then go through the root process again making a new TWRP stock backup after applying the new OTA.

Just one more BIG WARNING, this twrp comes with an option to reboot to bios. Be warned if you don't know what you are doing and you mess something up in there, FULL BRICK! no one will be able to help you recover.

PPS...there seems to be some issues with using magisk modules on our tab. To install them one must download them and then manually install them from twrp.

https://download.chainfire.eu/696/SuperSU/