Press and hold the and the Power button at the exact same time. Keep holding both buttons down firmly.
If your tablet is functional, back up your photos, documents, and accounts. A factory reset in recovery mode permanently deletes all local files.
To successfully boot the Nokia T21 into Recovery Mode, specific hardware button combinations must be utilized while the device is powered down. The process begins by ensuring the tablet has sufficient battery life—ideally above 50 percent—to prevent the device from losing power during critical system operations. To start, press and hold the Power button and select "Power Off" from the on-screen menu, waiting a few seconds for the device to shut down completely. Once the tablet is dark and inactive, press and hold the Volume Down button and the Power button simultaneously. Continue holding this combination until the Nokia logo appears on the screen or the device vibrates, at which point you should release the Power button while continuing to hold the Volume Down key. Shortly after, the screen will display the Fastboot Mode or directly transition to a fallen Android robot mascot with the text "No command." How to Open Recovery Mode on NOKIA T21
: Low. The device often requires a USB connection to a PC or charger just to trigger the standard boot cycles needed for maintenance menus. Accessibility : Poor. Official documentation and third-party guides HardReset.info explicitly state there is no accessible Recovery Mode through standard key combinations on this specific model. Alternative Utility
: Android implements Factory Reset Protection (FRP). If you perform a hard reset through Recovery Mode, you must log in with the Google account previously synced to the tablet to unlock it. Step-by-Step Guide: How to Open Recovery Mode on NOKIA T21 Press and hold the and the Power button
Clears temporary system files without deleting your personal data.
You should see a device listed. You may need to confirm an RSA key fingerprint prompt on your tablet's screen the first time you connect. A factory reset in recovery mode permanently deletes
the Power button and Volume Up key simultaneously. Select "Power Off" from the onscreen menu.
While holding Power, quickly press the button once. Release both buttons.
This method is useful if your tablet is still responsive and you have access to a computer.
Return to the main menu, select System , and open Developer Options . Toggle the switch to enable USB Debugging . Step 2: Prepare Your Computer