Gather the steps in a gist.

How to flash and root OnePlus 3T on Linux

Update

• 2017-jan-05:
  
  
  
  
  • fix SuperSU with no-verity-opt-encrypt-5.0.zip and SR5-SuperSU-v2.78-SR5-20161130091551.zip² ;
  
  

Requirements

Disclaimer: I've already done those kind of install on different phones and I'm familiar with the steps. So be sure to read the resources to get an understanding of what happens.

• [ ] battery are >60% ;


• [ ] know what you are doing?


• [ ] remember that version used worked for me.

Screenshots are not mine, thanks to their author.

Flashing Recovery to TWRP

Flashing require to do a factory reset. Backup your data.

Prepare Phone

1. enable Developer Options
   
   
   
   
   1. in Settings -> About Phone -> Build Number (at the bottom)
   
   
   2. by tap on it for 5-7 times to enable Developer Options
   
   


2. enable USB Debugging
   
   
   
   
   1. in Settings -> Developer Options -> USB Debugging.
   
   



3. enable OEM Unlocking (in the same list).

   
   
   

   developer-options http://cdn3.freeandroidroot.com/wp-content/uploads/2016/11/Enable-OEM-Unlock-USB-Debugging.jpg




4. Install adb and fastboot tooling:

   
   
   

   sudo apt-get install android-tools-adb android-tools-fastboot
   
   




5. Reboot to bootloader either with adb reboot bootloader or through power button ;




6. Unlock the bootloader:

   
   
   

   sudo fastboot oem unlock
   
   




7. Flash the recovery with TWRP:

   
   
   

   sudo fastboot flash recovery twrp-3.0.3-0-oneplus3t.img
   
   




8. Reboot to recovery to wipe cache ;



9. Reboot to recovery to mount the device ;


10. Download SuperSU and no-verity-opt-encrypt-5.0.zip
    
    
    
    
    • SR5-SuperSU-v2.78-SR5-20161130091551.zip (the 2.79² didn't worked for me) ;
    
    
    • no-verity-opt-encrypt-5.0.zip (dm-verity and forced encryption disabler).
    
    


11. Copy to your smartphone Internal Storage directory (using nautilus or nemo¹) ;


12. install both of them with TWRP ;


13. reboot and enjoy!

Root

The rooting procedure given here is not a data-loss process but it won’t hurt to have a backup of your smartphone’s personal data.

source

Resources

• How To Flash TWRP Recovery And Root OnePlus 3T - freeandroidroot ;


• How to root opt using Linux - forums.oneplus.net ;


• OnePlus 3T: How to Unlock Bootloader | Flash TWRP | Root - devs-lab.com ;


• Direct link to working version of SR5-SuperSU-v2.78-SR5-20161130091551.zip - download.chainfire.eu.


• Direct link to no-verity-opt-encrypt-5.0.zip - build.nethunter.com.

Footnote

• ¹: I didn't manage to access my smartphone storage with Dolphin ;


• ²: SR1-SuperSU-v2.79-SR1-20161221223537 didn't work for me.