1. To start, turn off the phone using the POWER button.
2. Press and hold the Volume Up(+) and POWER button at the same time within a few seconds.
3. You need to release the kept buttons when you see boot mode.
4. Select the string Recovery Use the Volume Up(+) button and click the Volume Down button to confirm the selection.
5. To open Recovery Mode, press the POWER button.
6. Select the menu option wipe data / factory reset Use the Volume down key, and press the Volume Up(+) button to confirm.
7. You need to approve the operation, select Yes and press the Volume Up(+) button to confirm.
8. Overload the phone, select reboot system now and press the Volume Up(+) button to confirm.
Hard Reset - advantages and disadvantages Karbonn Quattro L51 HD?
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 malicious programs that create difficulties in the operation of the device. Solving problems that have arisen on the device due to an application conflict.
Disadvantages of Hard Reset:
All your data and media files will be deleted. The need to have an up-to-date backup. Even after a hard reset, viruses can remain on the phone.
What needs to be done before the Hard Reset operation.
Before hard reset, you need to remember the login / password to your google account, otherwise you will not be able to use the phone since it will be blocked by the FRP. Before a hard reset, you can log out of your google account in advance. Then, after performing a factory reset, you do not need to remember the login password for your Google account. If after resetting the settings you cannot log into your Google account, then you need to find instructions for bypassing the FRP lock for your phone model. 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 remains in the memory of your phone, then it can be saved in the following ways:
Sync your data with Google contacts, Google drive. Backup your data, contacts and media. With the service programs for your phone, you can transfer important data to your PC.