If your tablet is still operational, back up your photos, documents, and app data to Google Drive or an external storage device.
After the logo disappears, the screen will display "No command" with an Android robot lying down. This is not the end! You are almost there.
On your PC, open a command prompt or terminal in the ADB folder.
You should now see the Android Recovery menu with blue and yellow text. 🔍 Understanding Recovery Mode Options
Plug your Nokia T21 into a computer or a wall charger via its USB-C cable. on the screen before moving to the next step. Step 3: Trigger the Hardware Key Combination How to Open Recovery Mode on NOKIA T21
Hold down the Power Button and select "Power off" from the menu. Wait for the device to shut down completely.
Used for advanced flashing and bootloader commands. ❓ Troubleshooting: What if it doesn't work?
To get past this, press and hold the Power Button and press the Volume Up button once , then release both buttons. You should now be in the main Android Recovery Mode menu. Navigating Recovery Mode
Do you have access to a if you need to use alternative methods? Share public link If your tablet is still operational, back up
Type the following command and press Enter:
To open Recovery Mode on a , you generally need to use a specific button combination while the device is connected to a power source or computer. Some sources suggest this model may not have a standard accessible recovery menu, but the following method is the most widely reported for Nokia Android devices. HardReset.info Step-by-Step Recovery Mode Guide
Ensure you connect the charger pressing the button combination.
| Option | Function | | :--- | :--- | | | Exits recovery mode and restarts the tablet normally. | | Apply update from ADB | Allows you to install a system update using a computer. | | Apply update from SD card | Installs an update file stored on an external SD card. | | Wipe data/factory reset | Use with extreme caution. Erases all your data and resets the tablet to factory settings. | | Wipe cache partition | Clears temporary system caches. This can help fix lag or minor software glitches without losing personal data. | | Mount /system | Gives you access to system files for advanced modifications. | | View recovery logs | Shows diagnostic logs that can help troubleshoot issues. | | Power off | Turns the tablet off completely. | You are almost there
If your physical buttons are damaged or unresponsive, you can boot into Recovery Mode using a computer and the Android Debug Bridge (ADB) tool. Step 1: Prepare Your Tablet Open on your Nokia T21 and go to About Tablet .
Once you have successfully opened the menu, you will see a list of options. As mentioned, the touchscreen will not work, so you must use the the highlight and the Power button to select an option.
Used primarily by technicians to test screen rendering and language localization packages.
Common menu options you’ll see: