You can boot up your device in Safe mode if you wish to troubleshoot whether added applications are causing problems with the device. Safe mode will load only basic system software.
Below are the steps to put your Samsung Smartphone in Safe Mode
1. Power off the device.
2. Press and hold the Power key for one or two seconds to turn on the device.
3. When the Samsung logo displays press and hold the Volume down key until the lock screen displays.
When the Lock screen is displayed Safe mode is displayed in the lower-left corner of the screen.
You are now in the Safe mode.
To exit Safe mode restart your device
If your device is working properly in Safe mode uninstall third-party applications or app updates using the Application manager.
To access the app, from the Home screen touch Apps > Settings > Application manager (if your settings are divided among tabs you may need to select the General tab first).
If necessary touch the DOWNLOADED tab. Touch an application in the list. Touch Uninstall > OK. Applications preloaded on your device cannot be uninstalled, but you can uninstall any updates you have applied by touching Uninstall updates > OK.
If none of the above steps works and you Samsung smartphone isn’t working properly yet
You can reset or flash your Samsung Smartphone
I hope above methods will work for you in troubleshooting your Samsung Smartphone problems.
Note: This method only works for Samsung Smartphones running Stock ROM (Firmware).
Please comment below if you have any query.