You can perform a software update, factory reset, or turn on Safe mode to determine if an app is causing the issue first.
Option 1. Download software updates manually.
Navigate to Settings > tap Software update > Tap Check for updates.
Option 2. Use the Safe Mode feature to identify the app that may be causing the problem.
You can completely power off the phone and power on the phone, press and hold down the Volume Down key to enter in Safe Mode.
Option 3. You can do a factory reset in case of an abnormal boot loop.
Step 1. Boot into Android Recovery.
- If the device has a separate Bixby key: Press the Bixby, Volume up, and Power button simultaneously.
- If the device does not have a Home button or a separate Power Button: Press and hold the Volume up and Side key simultaneously.
Step 2. Use the Volume up and Volume down buttons to select Delete all user data or Wipe data/Factory reset, then press the Power button.
Step 3. Use the Volume up and Volume down buttons to confirm your selection, then press the Power button.
Step 4. When the factory reset process completed, press the Power button to select Reboot device.
Step 5. Once your device has rebooted, enter your account details to access your device.
If these steps do not work and your phone or tablet is still experiencing problems, contact the Support Center for service.