Go to Settings > About Phone and tap Build Number 7 times.
After reboot, check:
Samsung provides a free unlock token via their website: unlock bootloader command free
Unlocking the bootloader wipes all user data (factory reset).
However, Xiaomi servers validate your account. Wait time: 7–360 hours. Go to Settings > About Phone and tap Build Number 7 times
: Download the official Android SDK Platform-Tools on your PC to access the required ADB and Fastboot commands. The "Free" Unlock Commands
After the phone reboots, you can verify the status by returning to Fastboot mode and typing: fastboot getvar unlocked Wait time: 7–360 hours
Verify that your computer can communicate with your device while the operating system is running.
A: Yes, but the process is more complex. Some custom ROMs support OTA updates, and Magisk can sometimes preserve root through updates. Generally, you'll need to manually flash updates.