An official website of the United States government

Dot gov

Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS

A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites. .

Put your phone back into (connect to PC, open command window, and run adb reboot bootloader ).

Ensure you have the latest Android SDK Platform-Tools installed on your computer.

Download the specific MSM Download Tool firmware version for your exact OnePlus model. Power off your phone completely.

This message typically appears when you are trying to flash a custom ROM, kernel, or system image onto a device via Fastboot , but the bootloader is still locked or requires a specific security handshake .

On a OnePlus device, unlocking the bootloader does not permanently burn a security chip. While you may lose access to carrier-specific apps like Visual Voicemail, core hardware functions remain unaffected.

This article will explain why this, and other OnePlus unlocking processes, makes OnePlus a better choice for Android enthusiasts compared to many competitors. What Does "Please Flash Unlock Token First" Mean?

Return to the main Settings menu and navigate to > Developer Options . Toggle on USB Debugging .