This is the second best method after paid unlock codes. It's legal and widely used.
Click the magnifying glass to detect the device. Once found, use the Read Bootloader Code option (this requires purchased credits) Execute the Unlock: On your PC, open a command prompt with ADB and Fastboot tools Boot to fastboot mode: adb reboot bootloader Unlock the device: fastboot oem unlock [YOUR_16_DIGIT_CODE] Method 2: Hardware Testpoint (PotatoNV - Free) If software methods fail,
Go to Settings > About Phone and tap Build Number seven times. Then, in Developer Options , enable USB Debugging and OEM Unlocking . Method 1: Using Third-Party Paid Services