The Oneplus 3T is a recently launched flagship device from OnePlus which comes with locked bootloader. But with few simple steps you can Unlock Bootloader of Oneplus 3T. These phones come with all new design, killer features, top-notch specifications and Android 6.0 software with promised Nougat update. Along with the powerful specs, you can add extras by rooting your phone, but for that, you need to unlock bootloader of Oneplus 3T first.

If you buy a Oneplus 3T and planning to install a custom ROM or want to root your phone, then you have to unlock the bootloader of Oneplus 3T first. Make sure warranty of your phone will void after unlocking bootloader or rooting. Once you unlock Oneplus 3T bootloader, you can root and install a custom recovery on your phone. So here is the step by step guide with the help of that you can quickly unlock bootloader of Oneplus 3T. Read the below note carefully before you unlock bootloader of Oneplus 3T.

How to Unlock Bootloader of Oneplus 3T


  • Follow the steps correctly otherwise you may brick your device. We are not responsible for any damage to your phone.
  • It will erase all your personal data including data of internal storage, so we advise you first to take a complete backup of your phone and then proceed.
  • Ensure that your phone has at least 50-60% charged to prevent the accidental shutdown in-between the process.

How to unlock bootloader of Oneplus 3T –

1) First, enable ‘USB debugging’ and ‘OEM Unlock’ option from setting>developer option>. To enable Developer Options, go to About phone and tap the Build Number 7 times.

Usb debugging and OEM Unlocking
2) Install the ADB and fastboot driver for windows or ADB and Fastboot for Mac and then restart if you already have the driver installed then skip this step.

3) After installation of the driver, you can see a folder named ADB in your installation directory. Enter the folder, and you find four files including ADB and fastboot.exe.

4) Now press and hold ‘shift’ key and right-clicked anywhere in the folder and select ‘Open command window here’.

fastboot cmd

5) Now connect your device to PC and enter into the fastboot mode. To enter the fastboot mode of OnePlus 3T type the below command in command prompt or press ‘Power + Volume Up

adb reboot bootloader

6) You are in Fastboot mode now to check your connection by entering below command in command prompt. It will return your device serial number means your device properly connected. Check your driver if the above command is not responding.

fastboot devices

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7) To unlock bootloader of Oneplus 3T, go to the command line and type below command. It will only take seconds to complete the process.

fastboot oem unlock

8) Above step will unlock the bootloader of Oneplus 3T. Now your device will reboot into bootloader mode.

9) To check if your device is successfully unlocked, type below command in the command prompt you see ‘Device Unlocked’ bit set to ‘True’.

fastboot oem device-info


This is the complete guide on how to unlock bootloader of Oneplus 3T. But unlocking your bootloader alone is not enough you should install a custom recovery and root your device to get full access. If you have any doubt related to above process comment below.


Sumit is a Tech and Gadget freak and loves writing about Android and iOS, his favourite past time is playing video games.


    • Yes you can re-lock the bootloader but OnePlus remain in warranty even after unlocking the bootloader.

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