How to hard reset Celkon A21
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1. Turn off the phone using the POWER button.
2. Press and hold the POWER and Volume Up(+) button for a few seconds.
3. Release the buttons when you see the Android logo.
4. Press the Home button to open the menu.
5. Select from the menu item wipe data / factory reset using the Volume Up(+)/Down(-) buttons to go through the menu and menu key to take action.
6. Select Yes - Delete All user Data and confirm using the menu key> .
7. Overload the phone, select reboot system now and confirm using the menu key.
Hard Reset - advantages and disadvantages Celkon A21?
In simple words, Hard Reset means hard resetting the phone. As a result, the system automatically returns to the factory settings and the system is completely cleared. Contacts, correspondence, application, files, search queries, passwords - all of this is deleted from the device's memory.Benefits of Hard Reset:
The ability to reset the phone, thereby improving its performance.
Removal of viruses that block applications on the device and give persistent errors.
Solving various problems on the device that arise due to the conflict of applications.
Disadvantages of Hard Reset:
Permanently deletes all data on the device.
The need to have an up-to-date backup.
Not all viruses on Android can be removed even after returning to factory settings.
What needs to be done before the Hard Reset operation.
If you are going to do a hard reset on your phone, then be sure to make sure that you know the access data for your google account.
Before a hard reset, you must first log out of your google account. In this case, after performing a factory reset, the phone will not be locked by the FRP.
In case you have already done a factory reset and cannot remember the login and password for logging into your Google account, for most models there are instructions for bypassing protection (FRP).
Not all phone models can bypass the FRP protection, their owners will need to contact the official service center.
After performing a hard reset, your device will be completely wiped clean. Everything that was in the memory of your device will be deleted.
What can be done to avoid losing important information?
If important information (contacts, sms, photos, videos) remains in the memory of your device, then there are the following options to save it:
Sync your data with Google contacts, Google drive.
Backup your contacts and information.
With the service programs for your phone, you can transfer important data to your PC.
Summary: OS: Android (4.2.2); Dimensions: 3.2 megapixels; Camcorder: Yes; Features: Video calling; Front-facing camera: 1.3 megapixels; Processor: Dual-core, 1200 MHz; Graphics processor: Yes; System memory: 256 MB RAM; Built-in storage: 0.512 GB; Storage expansion: microSD, microSDHC up to 32 GB; Talk time (3G): 8.00 hoursthe average is 15 h (900 min); Stand-by time (3G): 5.0 days (120 hours)the average is 24 days (588 h); Capacity: 1500 mAh; Type: Li - Ion; Music player: ; Filter by: Album, Artist, Playlists; Features: Album art cover, Background playback; Supported formats: MP3, eAAC, WAV; Video playback Supported formats: MPEG4, H.263, H.264; Radio: FM; Speakers: Earpiece, Lou ...
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