Hard reset Celkon A21

OS: Android 4.2.2 (Jelly Bean)

CPU: Quad-core 1.3 GHz Cortex-A7

Display: 4" inc

Camera: 3.15 MP, Single

For Hard reset Celkon A21 use following steps

1. Press the Power button and turn off your smartphone

2. Press the 2 buttons Volume up and Power at the same time for a few seconds

3. When the CELKON logo appears on the screen, you can release all keys

4. After waiting for the Android Robot logo to appear on the smartphone screen and press the Volume Up and Power buttons

5. Move the cursor to the "wipe data / factory reset" menu item, the Volume Up / Down keys are used to navigate the menu, and the Power key to confirm the choice made

6. In the menu, go to "yes" and press the Power button

7. Select a line from the menu "reboot system now"

8. Data reset procedure completed

Thomas Nilan
Smartphone Expert

Thomas Nilan is a mobile phone expert with in-depth knowledge of the Android and iOS operating systems, who understands the settings of various hidden features that allow you to expand the capabilities of your smartphone, as well as get information about what is going on inside the phone for future repairs. He is an authority in his field, which has allowed him to become a ghostwriter for several technology publications, and he enjoys writing small mobile applications for testing smartphones.