1. First download Xperia Companion on a laptop or PC.
2. Take the program here www.support.sonymobile.com/global-en/tools/xperia-companion/.
3. Install this program to your computer.
4. Turn off the phone and connect the USB cable to the computer.
5. Open Xperia Companion and in the main menu, select Software Repair.
6. Confirm the process, follow the instructions on the screen.
7. Translate Sony Xperia Z5 to FastBoot Mode.
8. Hold down the Volume Down(-) button Connect the USB cable to the phone.
9. Press the Next button to delete all data.
10. Upon completion, turn off the phone.
Hard Reset - advantages and disadvantages Sony E6633 Xperia Z5 Dual?
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 completely clear the phone from user information. Solve various virus-related problems on your device. Solving problems that arose after installing some applications and remained after they were removed from the phone.
Disadvantages of Hard Reset:
All your contacts, data and media files will be deleted. The need to have a fresh backup. Not all viruses will be removed even after a factory reset.
What needs to be done before the Hard Reset operation.
Before hard reset, make sure that you know the access data for your google account, otherwise you will not be able to use the phone as it will be blocked by the FRP. You can sign out of your google account before resetting. In this case, after performing a factory reset, you do not need to enter the login password for your Google account and you can immediately use your device. If, after a factory reset, the phone is locked because you cannot log into your Google account, then you need to find 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, photos, videos) remains in the memory of your phone, then it can be saved in several ways:
Synchronize your data and contacts with Google. Backup your contacts and information. Using the service programs for your phone model, you can transfer important data to your PC.