Android features Factory Reset Protection (FRP). If you reset your device through Recovery Mode, you must log in with the Google account previously linked to the tablet to unlock it. Step-by-Step Guide: Booting Nokia T21 into Recovery Mode
Now, type the execution command and press Enter: adb reboot recovery
: When the Android robot with "No command" appears: Hold the Power button . Briefly press Volume Up once, then release both.
: Press and hold Power + Volume Down simultaneously.
Look at your tablet screen; a prompt will ask you to allow USB debugging access. Tap . How to Open Recovery Mode on NOKIA T21
In the terminal window, type the following command to verify your connection: adb devices
If the tablet boots normally, repeat steps 1–7, but hold the buttons longer. Timing is critical—try holding Volume Up before pressing Power.
Keep holding both keys until the Nokia logo appears on the screen.
: Erases all data to restore the device to its original factory settings. Wipe Cache Partition Android features Factory Reset Protection (FRP)
Deletes all user data, apps, and settings, returning the operating system to factory defaults. This is highly effective for fixing severe bootloops or system lockouts.
your Nokia T21 completely.
If you reset your tablet via Recovery Mode, Android’s Factory Reset Protection (FRP) will trigger. You will be required to log in with the Google account previously linked to the tablet to unlock it. Step-by-Step Guide to Open Recovery Mode on NOKIA T21
Entering Recovery Mode on the Nokia T21 is a straightforward process once you memorize the button combination. Whether you are troubleshooting a glitch or resetting the device for a new owner, this hidden menu is an essential tool for any Android user. Briefly press Volume Up once, then release both
adb reboot recovery
A: Press and hold the Power button for 20-30 seconds to force a shutdown. Then follow the key combination method described earlier.
If you see the Android robot with "No command," you need to wake it up: