How To Open Recovery Mode On Nokia T21 -

: Connect your tablet to a power source (charger or PC) using a USB cable. Wait for the charging animation or battery sign to appear.

: Press the Power button to choose the highlighted option.

: Select "Reboot system now" to return to normal operation. Why Use Recovery Mode? Nokia 3: How to enter Recovery & FastBoot Modes

: Press and hold the Volume Up and Power buttons simultaneously.

: Go to Settings > About Tablet and tap Build Number 7 times. Then, in System > Developer Options , enable USB Debugging .

If your device's buttons are damaged or you have a computer handy, you can use the Android Debug Bridge (ADB).

: Press Volume Up or Volume Down to scroll through options.

Once inside, the touchscreen will not function. Use these physical controls:

: Type the following command and hit Enter: adb reboot recovery . The tablet will restart directly into Recovery Mode. Navigating the Recovery Menu