To enable USB Debugging

  • You will need to become a Developer first on your device !!

To become a developer

  • Unlock your device and go to

Settings > About Phone > Build Number or Version > Tap seven times

You will get a message that you are a Developer.

To Allow USB Debugging

After completing the above steps and becoming a developer on your device go to

Settings > Additional Settings > Developer Options > Toggle Developer Options to enable > Toggle USB Debugging to enable

On some devices the path may be as under

Settings » System » Advanced » Developer options » USB Debugging ( enable it here)

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To unlock OEM

Why do you need to enable Unlock OEM

To flash a custom ROM like LineageOS or /e/OS you need to unlock the bootloader of your device. This requires that you as the owner of the device should

  • Grant permission to unlock the bootloader
  • Unlock the bootloader

Steps to enable OEM Unlock through the Developer Options

Settings > Additional Settings > Developer Options > Search for OEM Unlock and enable

On some devices the path may be as under

Settings » System » Developer options » Search for OEM Unlock and enable

Steps to enable OEM Unlock through the command line

  • Enable USB debugging on your phone and connect it to the pc by a USB cord. The instructions for this are given above
  • Open a console window
  • Enter adb devices
  • Proceed only if your device is detected.
  • Enter adb reboot bootloader
  • Enter fastboot devices, proceed only if the device is detected
  • Enter fastboot oem unlock
  • You will be asked to confirm the request on the phone screen, select yes
  • When the process completes, type fastboot reboot and the phone will reboot normally.

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