Template:Unlock Bootloader

Unlocking the device (bootloader)

First, the bootloader must be unlocked.

Download and install the Android SDK for your platform from here: Android SDK
Open a Terminal and: cd to <sdk>/tools/
Run: ./android to start the Android SDK Manager
Use it to install the latest version of 'Android SDK Platform-tools'
Close the Android SDK Manager
In your Terminal window,: cd to <sdk>/platform-tools/
Power off the {{{device_name}}} and activate the bootloader ({{{device_recovery_boot_steps}}})
Connect it via USB
In your Terminal window, run: ./fastboot devices
If your device shows up, proceed to the next step. Otherwise, follow the instructions in this thread
In your Terminal window, run: ./fastboot oem unlock
A warning will appear on your {{{device_codename}}}, prompting you to unlock your bootloader.
Use the Volume Up and Volume Down buttons to navigate and the Power button to confirm your selection.
Reboot Device