If your Nokia T21 has broken volume keys or if you are a developer working with a computer, you can boot into Recovery Mode using Android Debugging Bridge (ADB) commands. Step 1: Prepare the Tablet Go to .
Press and hold the on your Nokia T21. Select Power Off from the on-screen menu and wait roughly 10 to 15 seconds until the device completely shuts down and vibrates. Step 2: Trigger the Bootloader / Fastboot Screen
The Android Recovery screen will instantly appear, populated with a list of blue and yellow text commands. Method 2: Using ADB Commands (Advanced) How to Open Recovery Mode on NOKIA T21
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
Ensure your Nokia T21 has at least 50% battery to prevent the device from shutting down mid-process, which can cause permanent software damage. If your Nokia T21 has broken volume keys
Clears temporary system files without deleting your personal data (useful for fixing sudden performance lag).
To exit without making changes:
: Press the Power button to confirm your selection (e.g., "Reboot system now" or "Wipe data/factory reset"). 18;write_to_target_document7;default0;4c0;18;write_to_target_document1a;_joPsaaf-OZmfptQPv8vGkQE_20;2a; 0;ea;0;7a;0;145;0;922;
