If your smartphone Celkon A402 it works very slow, it hangs, you want to bypass screen lock, or you have a full memory, and you want to erase everything, or you want to sell it or give it away and you want nobody to be able to access your files and passwords you can do a factory reset so that it returns to be like the first day.
In the following steps we explain how to format the Celkon A402 to erase all your information and make it totally clean as it came out of the store.
Before doing a factory reset we recommend you delete all the accounts on the device, specifically it is useful to unlink the Google account if you are going to sell, donate or give away your A402. In this way we will avoid problems for the new user since some More modern devices include a functionality called FRP or Factory Reset Protection that requests the same Google account or PIN code with which the Celkon A402 was initially configured when factory restoring a device.
You must bear in mind that a reset or return to the factory state in a mobile/cell phone deletes all its content, so you must make a backup of your data before doing it if you do not want to lose everything.
In case you do not want to erase the data from the device, you can try to restart the Celkon A402.
There are two ways to do a reset on a Celkon A402 one through the mobile options and another more complete from the recovery mode.
If you want to make a reset using the device options to return to the factory state a Celkon A402 you have to follow these simple steps:
Estimated time: 5 minutes.
1- First step:
Access the settings menu of your device Celkon A402, this is the cogwheel icon.
2- Second step:
Scroll down the Celkon A402 settings to the bottom where you will see the section called “System”, click to continue.
3- Third step:
If you see a section called “Advanced” click to display the advanced options of the Celkon A402.
4- Fourth step:
Click on “Reset options” from this section it will allow us to restore network options, applications or reset the Celkon A402 completely.
5- Fifth step:
Click on the last option called “Erase all data (factory reset)” or simply “Factory data reset”.
6- Sixth step:
A first confirmation message will appear reminding you that all your data will be deleted from this device, the data you have uploaded to Google, Facebook, Twitter, Instagram or backup copies that you have in the cloud, such as Google Drive, Dropbox or One Drive, will not be deleted. Press “Reset phone”.
7- Seventh step:
A second confirmation message will appear indicating that all information stored on the Celkon A402 and all downloaded applications will be erased and reminding that this action cannot be undone. If you agree, click on “Erase Everything”.
8- Eighth step:
If necessary, draw the screen unlock pattern or enter the screen unlock password or PIN to continue.
9- Ninth step:
Your device A402 from Celkon it will restart and take several minutes to start while restoring the device to its factory state and optimizing the applications pre-installed in the operative system Android 4.4.2 (KitKat).
Restore with hard reset or Recovery mode your Celkon A402 can solve problems that have not been solved with a normal factory reset.
1- First turn off your Celkon A402 completely. If you can not unlock the screen, press and hold the power button for about 20 seconds and the phone will turn off.
2- Keep holding on volume down and power keys together for a few seconds. In some devices according to the Android version the combination can be the power key and the volume key up.
3- When the Celkon logo is displayed, release the buttons.
4- Move through the menu with the volume up and volume down keys until you reach the “Recovery Mode” option and press the power button to access.
If the device menu appears in Chinese characters, click here to see how to reset a mobile in Chinese
5- Use the volume up and volume down keys to select the “wipe cache partition” option and press the Power button to activate the option and clear the mobile cache.
6- After a few seconds you will return to the previous screen, with the volume buttons go to the option “wipe data / factory reset” and press the power button to enter. A screen with many NOes and a YES will appear, with the volume keys again go to the YES and press with the power key.
7- After finishing again with the volume keys, click on “reboot system now” and press the power key of your Celkon A402, the device will reboot and take several minutes to start while restoring the device to its factory state and optimizing the applications pre-installed in the system Android 4.4.2 (KitKat).
About the device:
Celkon A402 is a device with 125.5 x 64 x 10.2 mm (4.94 x 2.52 x 0.40 in), a weight of 104 grams, a screen resolution of 480 x 800 pixels (~233 ppi pixel density).
It has a processor 1.2 GHz, a graphics card Mali-400, a RAM memory 512 MB RAM and an internal memory of 4 GB.
The Celkon A402 comes from the factory with the Android 4.4.2 (KitKat) operating system.