1. To start, turn off the phone using the POWER button.
2. Now, press and hold the Volume Up / Down buttons, Home, POWER together for a few seconds.
3. Release the left buttons when the SAMSUNG logo appears on the screen.
4. Select in the menu wipe data / factory reset using the Volume Up(+)/Down(-) buttons to go through the menu items and the Home button to confirm .
5. Select from the menu Yes - Delete All user Data and click the Home button to confirm the selection.
6. The phone removes all settings, personal data and downloaded programs.
7. Select in the menu "reboot system now" and click the Home button to confirm the selection.
Hard Reset - advantages and disadvantages Samsung I9505 Galaxy S4?
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. Removing viruses that have entered your phone. Solving various problems on the device that arise due to the conflict of applications.
Disadvantages of Hard Reset:
All your data and media files will be deleted. The need to have a backup. Unfortunately, in some cases, not all viruses on Android will be removed, even after a hard reset.
What needs to be done before the Hard Reset operation.
If you want to do a hard reset on your phone, then make sure you know the login / password 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. 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 modern phone models can bypass this protection, their owners will have to contact an 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, photos, videos) remains in the memory of your phone, then it can be saved in several ways:
Sync your data with Google contacts, Google drive. Backup your contacts and information. With the service programs for your phone, you can transfer contacts, media files, and important data to your PC.