When the Samsung mobile phone is turned on or off, only the Samsung icon is displayed.

Samsung mobile phone has a boot screen, but it can't boot to the standby screen normally. You can do the following:

1. Take out the SIM card and SD card at the same time, and then try to boot.

2. When you see the "SAMSUNG" logo icon, please press and hold the menu button (left touch-sensitive button) when restarting the machine. For the recently listed models, press and hold down the volume down key until the words "Safe Mode" appear in the lower left corner of the screen, then let go and back up data (such as contacts, text messages, photos, etc. ) and restore the factory settings.

3. If you can't enter the safe mode or the problem still exists after operation, it is recommended to take the three-guarantee certificate of the mobile phone to the nearest Samsung service center for inspection and maintenance.