Fix Samsung S21, S21Ultra, S21Plus Keeps Restarting

Samsung S21 keeps rebooting randomly after update? No worries, we’ll walk you through potential solutions to get it fixed. If it’s a software glitch, we can definitely deal with it, but if the phone was dropped and its a hardware fault, you might need help from Samsung or a nearby local repair shop.

Well, our experts have brought out the line-up of best tricks that will help all the bugs in the device. So kindly follow the given below tricks that will definitely bring out the results.

Samsung S21, S21 Plus, S21 Ultra Keeps Rebooting after Update

Charge the phone and observe

Firstly you need checkout that the possibility of the corrupted battery in the device. If the issue lies within the battery, then the Samsung Galaxy S21 plus device will not reboot as it’s connected to the charger and there is a continuous flow of current in it.

Note: Only use the official charger given by the Samsung Company, if not, then verify the output power of the third party charger with the official charger output, if it matches then use it.

  • Plugin the charger into the working power outlet.
  • Connect the charger with the device.
  • Let the device charge and observe it, if the device reboots or not.

The issue doesn’t occur, then it’s feasible that the device battery is corrupted.

Remove SD Card

If you do use microSD Card for extra storage, then remove it from the device for some time. Samsung S21 keeps restarting can be happening due to corrupted files stored in microSD Card, which is pushing the phone to restart in loop. Use eject tool to remove the SD Card.

Force Restart

Press and hold Volume Down button and Power button until Samsung logo displays. This will force restart the programs and applications installed on the device.

Reset All Settings

Open Settings app > General management > Reset > Reset all settings. Enter password, if asked to confirm Reset all settings. Security settings, Language settings, Accounts, Personal data, and Settings for downloaded apps will be restored to default settings, this doesn’t include any of your personal data.

Disable Auto Restart | Samsung S21 Restarts at Night

If Samsung S21Ultra, S21, or S21 Plus restarts randomly at night, make sure the Auto restart at set times is disabled. This feature is handy and of course, you should be used to restart the device once a week to boost the performance and stability of the program.

  1. Go to the Settings app.
  2. Search Auto restart at set times and disable it.

Run your device in Safe Mode

As we all know the safe mode only allows the pre-installed apps to run and all the third-party apps are not allowed. So there are chances where all the bad coded third-party apps keep crashing the phone and decrease the performance of the device.

  • Press the Volume Low Button and Power Button for a few seconds to feature the Power Menu.
  • Press the Power Off Key until the safe mode is visible on the screen.
  • Touch the Safe Mode to restart the device.

Factory Reset Your Phone

After the completion of those solutions, still, the issue is not fixed just simply perform the factory reset on your device. Well, we recommend backup all the data stored in the device as it will clear all the data stored in the device. For that, follow the given below steps.

  • Go to Settings App.
  • Swipe down and hit General Management.
  • Touch on the Reset to feature all reset options.
  • Select Factory Data Reset.
  • Swipe down and hit Reset.
  • If prompted, enter your PIN, Password, or Pattern.
  • Hit Delete All.
  • Hit Done to proceed with the reset.

Contact Samsung Support

Last but not least experts from the Samsung Team are there to help you out. Whether it is hardware or software issue, Samsung Technicians will diagnose the phone and get back to you. Visit the nearest Samsung Service Centre.

Why does my Samsung S21 keeps restarting?

It can be a hardware fault or software glitch, you may need to check both possibilities to figure out why Samsung S21 keeps rebooting randomly after an update. Read our extensive troubleshooting guide to fix it.

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