It’s uh, simple. Here’s how you do it. To boot your OnePlus 2 into bootloader/fastboot mode, just do this: power off your device, and then after waiting for 3-4 seconds after screen goes off, just press and hold Power + Volume up button together until you see anything on screen.

That’s it. Dead easy! Btw, here’s how you reboot it into recovery mode. Useful when you are looking to do a factory reset on your OnePlus 2.

Tip: If your OnePlus 2 is not responding, then you may need to force shutdown it to get the above trick working.

Alternate method to reboot OnePlus 2 into bootloader or fastboot mode is given below, which uses ADB tool. And no hardware buttons, at all. Here’s how.

  1. Install ADB and Fastboot driver.
  2. Open a command window on your computer.
  3. Now, enable USB debugging on your OnePlus 2.
    • Go to Settings > About phone, and then tap ‘Build number’ 7 times or until you get the message ‘You’re now a developer!’.
    • Go back to Settings, then choose ‘Developer options’. Find the ‘USB debugging’ option and use its toggle button to enable it. Accept warning by tapping on OK button.
  4. Connect your OnePlus 2 to PC now. You will get a pop-up as shown below on your phone when you connect for the first time after enabling USB debugging. Select ‘Always allow from this computer’ checkbox and then tap on OK button.
    Allow USB Debugging
  5. Now, type the following command into command window and then press enter key to run it. 
    adb reboot bootloader
  6. That’s it. Your OnePlus 2 will reboot into fastboot mode.

Do let us know if you need any help regarding this. Use the comments section below for faster help.

Useful tips: If you need to, here’s our OnePlus 2 Factory Reset guide. And here’s how you can boot OnePlus 2 recovery mode.