How to Unlock the Boot Loader on the Android

1. Download the Android software development kit from the Android Developer's website onto your computer. Unzip the ZIP file when the download finishes. Open this folder after extraction.

2. Double-click 'SDK Manager' from the files in this folder. Put a check mark next to 'Android SDK Platform-tools' and remove the checks next to any other package on the main window that appears. Click 'Install.' Click 'Start.' Right-click 'Computer.' Click 'Properties' to access System Properties.

3. Click 'Advanced.' Click 'Environmental Variables.' Double-click 'Path' to open an editing window. Paste ';c:\android-sdk-windows\tools;c:\android-sdk-windows\platform-tools' in to the path variable without altering any other variables under Path. Click 'OK.'

4. Click 'Start.' Type 'cmd' to open the command prompt. Type 'cd \' to move to the base drive directory.

5. Hold down the power button on your Android phone, then hold the 'Home' button or trackpad to restart your phone. When your phone is restarted in this fashion, it enters its bootloader mode.

6. Connect the phone to your computer. Type 'fastboot oem unlock' on your computer's command prompt and press 'Enter.'

7. Select 'Yes' on your phone to instruct the phone to unlock the bootloader.