Original topic:

Samsung S21Fe: Multiple Crashes and Phone Rebooting Everyday

(Topic created on: 11-21-2023 12:31 PM)
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MegBharat
Beginner Level 2
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Galaxy S

Hello Members,  Wanted to know if anyone else is facing this issue. My Samsung S21Fe after the June Update has been crashing multiple times throughout the day between switching apps and multi-tasking. The phone randomly restarts and overheats due to multiple reboots. After the latest update, I haven't been able to use the device as it goes back to rebooting.  I have tried everything including multiple factory resets. Is anyone else facing this problem? 

1 Comment
Samsung_specialist
Community Manager
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Galaxy S

We apologize for any inconvenience this may have caused you. Kindly Check for possible causes of unexpected phone shutdowns.
1 Close power-hungry apps or features.
If your phone's battery is running low, features or apps that need more power may force the device to shut down unexpectedly. This feature is intended to keep the battery safe.

2 Check the battery.
Remove any detachable batteries and inspect them thoroughly. Check that the battery is genuine Samsung and that there is no damage to the battery or the pins in the compartment.
If you are unable to remove the battery, reset the device by pressing and holding the Power and Volume down keys for 30 seconds.
3 Check the Power key or Side key.
Remove any covers or accessories that may interfere with the device's buttons.
Examine the Power or Side keys for regular movement. When you push the button, there should be a small but definite clicking sound. If the key becomes stuck, it may trigger unexpected shutdowns.
3 Charge the device.
Only use an original Samsung charger and USB cable.

Disable Auto-restart on the phone.
1 Open Settings.
Navigate to and click Settings, then search for and choose Auto-restart at certain periods.

2 Disable Auto restart.
To disable Auto-restart, tap the switch at the top of the screen.

Alternatively, you may keep Auto restart enabled and use the schedule to control when your phone restarts to avoid surprises.

Reboot the phone or tablet in safe mode
1
Learn about Safe mode.
Certain apps might cause your phone or tablet to freeze, crash, or lag. Some programs can even interfere with camera performance, create audio problems, and disrupt network connectivity.

Safe mode disables all downloaded applications and runs just the original software that came with your phone or tablet, allowing you to establish if the problem is due to an app or the phone or tablet itself.

If the problems do not emerge when in Safe mode, they are the result of a downloaded software that should be deleted.

Note: If you have a security feature enabled on your phone or tablet, you will be prompted to input your credentials when the device reboots.

2
Reboot the phone or tablet in Safe mode.
First, open the Power menu:

On devices with a regular Power key, press and hold the Power key until the Power menu is displayed.
On devices without a power button, swipe down with two fingers from the top of the screen to open the Quick panel. Tap the Power icon at the top of the screen.
Touch and hold Power off until the Safe mode icon is displayed. Tap Safe mode to start your device in Safe mode. If you've entered Safe mode successfully, you'll see Safe mode displayed at the bottom of the screen.
Safe mode
3
Check if the phone or tablet is still having the same problem.
Use the phone or tablet to see if the issue has been fixed. If the phone or tablet is operating normally, a recently installed app was most likely causing the issue.

If the issue is gone in Safe mode: One of your recently downloaded apps was likely the cause of the problem. You need to proceed to Step 4.
If the issue still exists: Downloaded apps may not be the cause of the problem. You may need to reset the phone or tablet to the factory setting.
4
Uninstall apps.
One by one, uninstall any apps you downloaded just before your phone or tablet began having the issue.

After uninstalling each app, restart the phone or tablet and check if it is working normally.

After uninstalling the app that caused the issue, you can reinstall the other safe apps you just deleted.

5
Reboot the phone or tablet normally.
First, open the Power menu:

On devices with a regular Power key, press and hold the Power key until the Power menu is displayed.
On devices without a Power key, swipe down with two fingers from the top of the screen to open Quick Panel. Tap the Power icon at the top of the screen.

Tap Power off to turn off the device. Wait until the phone or tablet completely turns off, and then press the Power key again to turn it on. See if the issue has been resolved.


If your Galaxy device is beginning to overheat, there are a few actions you can take to resolve the issue.

Step 1. Go to Settings > Device care.

Step 2. Tap Optimise now.

Step 3. Check the result and tap Done.

Step 1. Go to Settings > Device care.

Step 2. Tap Battery.

Step 3. Turn on Power saving switch.

Step 4. Tap Background usage limits.

Step 5. Turn on Put unused apps to sleep switch.

If the issue still persist, please visit the nearest service center. You can visit the link below to find the nearest service center:
https://www.samsung.com/ae/support/service-center/

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