Got this from a community post a while back…
I would recommend you to install the app “Clean Master” to clean up some unnecessary files. If you have any software updates then update your Android to the latest version.
Also, try wiping cache partition by doing this:
- Turn off the device.
- Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
- When the green Android logo displays, release all keys (‘Installing system update’ will show for about 30 – 60 seconds before showing the Android system recovery menu options).
- Press the Volume down key several times to highlight “wipe cache partition”
- Press Power button to select.
- Press the Volume down key to highlight “yes” and press the Power key to select.
- When the wipe cache partition is complete, “Reboot system now” is highlighted.
- Press the Power key to restart the device.
It will take a little longer for the phone to boot up after wiping the cache partition as it will rebuild those files.
If it still happens after these solutions, do a factory reset if you think it’s worth it. Make sure to secure all of your data before doing that.
- Starley (Android Genius)