If you find yourself with an issue that did not exist before then you want to try Safe mode as a troubleshooting method. Certain third-party apps could make the phone act erratically and cause problem.
Just like with a desktop computer, you can restart the phone in Safe Mode.
What is Safe Mode?
When in Safe Mode, only the basic original software and apps are used and any other apps you have downloaded from Google Play or elsewhere stay disabled. This will allow you to narrow down issues that are caused by 3rd party apps.
After you restart your phone in Safe Mode if the phone’s performance instantly improves, a third-party app is likely the culprit.
How to start the phone in Safe Mode?
Method 1 :
Turn the phone off.
Press and hold the Power/Lock key for one or two seconds to turn on the device. Let go of the power button. When the Animated Samsung logo displays (is should be the second Samsung logo that you see), press and hold the Volume down key.
When the lock screen displays, the words "Safe mode" will be shown in the lower-left corner of the screen.
For certain phones you have an easier way to restart in safe mode.
Start with the phone ON
Press and hold the power button
When you see the power off button on the screen, press and hold it.
You will see a dialog box that allows you to restart in safe mode.
Once you are in safe mode, try out the phone for an hour or two to test its stability. If the handset shows a noticeable improvement, a third-party app is the probable cause. (You can leave Safe Mode by restarting the phone again.) If you have your suspicions about any new apps you have recently downloaded, uninstall them one by one to see if the phone’s behavior improves. You can always download and reinstall an app again if you see no difference in the phone’s performance.
Only downside of Safe mode is that restarting in safe mode will remove any Widgets and themes. After normal restart you need to set your theme again and add any widgets you had again.
I hope this post is helpful.
Superman on Galaxy S7 SM-G930T, T-Mobile, Baseband:G930TUVY3APIA To OP: click "✓ Accept as Solution" when you find an answer that works for you.