1. To start the Hard reset procedure, the phone must be turned off.
2. After that, you need to press and hold the POWER button and the Volume Down button button within a few seconds.
3. After that, you need to release the left buttons, as soon as the download mode menu appears on the screen.
4. Then use the Volume Up(+)/Down(-) buttons to select the option bootloader and press the POWER button to confirm.
5. Press Volume Down(-) button to select the reboot to recovery mode parameter, and press the POWER button to confirm.
6. When an exclamation mark appears on the screen of your device, press and hold the POWER key and press and release the Volume Up(+) key>.
7. Highlight the wipe data / factory reset option from the menu, using the Volume Up(+)/Down(-) buttons to go through the menu items and the POWER button for confirmation.
8. Select Yes - Delete All User Data and press the POWER button to confirm.
9. Overload the phone, select reboot system now and press the POWER button to confirm.
Hard Reset - advantages and disadvantages HTC Desire 550?
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 get a completely clean phone from user settings and data. Removal of viruses that block applications on the device and give persistent errors. Solving problems that have arisen on the device between applications and for example bluetooth.
Disadvantages of Hard Reset:
All your data stored in the phone will be permanently deleted. The need to have a fresh 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. You can sign out of your google account before resetting. In this case, after performing a factory reset, the phone will not ask for any logins and passwords and you can use your device. If after a hard reset you cannot remember the login password to enter your Google account, then you need to use the instructions for bypassing the FRP lock for your phone model. Owners of modern phone models will need to contact the official service center to bypass the protection of the FRP.
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. Create a backup using Titanium Backup. Using the service programs for your phone model, you can transfer important data to your PC.