Connect your Nokia C21 to the computer using a USB cable. A pop-up may appear on the phone asking to allow USB debugging; select "Always allow" and tap OK.
Once the phone is off, locate the Volume Up button and the Power Button . On the Nokia C21, these are usually located on the right edge of the device.
If your phone is stuck in a bootloop or you have USB debugging enabled, you can use ADB commands to reboot directly into Fastboot. How to Open Fastboot Mode on NOKIA C21
Accessing is a straightforward process once you know the correct key combination. The hardware method (Volume Down + Power) is the most reliable for 99% of use cases.
buttons for about 10–12 seconds until the device vibrates and reboots. Nokia C21 Plus variant, some users found success by holding both Volume Up + Volume Down and then connecting the device to a computer via once you've entered the Fastboot menu? Fastboot Mode NOKIA C21 - HardReset.info Connect your Nokia C21 to the computer using a USB cable
Keep holding both buttons until the Nokia logo appears on the screen.
Connect your Nokia C21 to your computer using a high-quality USB cable. Open a or PowerShell window on your PC. Type the following command and hit Enter: adb devices On the Nokia C21, these are usually located
Unlocking the bootloader wipes all your data and voids your warranty. Proceed only if you understand the risks.
| Command | Purpose | | :--- | :--- | | fastboot reboot | Exit Fastboot and restart the phone normally. | | fastboot oem unlock | Unlock bootloader (requires official key from Nokia). | | fastboot flash recovery recovery.img | Flash a custom recovery like TWRP. | | fastboot erase cache | Wipe cache partition. |
to confirm your selection (e.g., to enter Recovery Mode or Restart Bootloader). : To exit Fastboot Mode and restart normally, hold down the