Samsung Galaxy A20 keeps rebooting by itself. Here’s the fix.

When a smartphone like the Samsung Galaxy A20 keeps rebooting, the problem could either be with the hardware or firmware. It is difficult to determine what the cause without troubleshooting the phone. If it’s with the hardware, then there’s only so much you can do about it, especially if you care about the warranty of your device. Needless to say, you need a technician to tinker your device. However, if it’s with the firmware, then there’s always something you can do about it. In fact, you may be able to fix the problem by doing a couple of procedures. 

In this post, I will guide you in troubleshooting your Galaxy A20 that keeps rebooting by itself. We will try to consider every possibility and rule them out one after another until we can determine what the issue is all about, so that we can try and fix it. If you’re one of the owners of this phone and are currently being bugged by a similar issue, continue reading as this post may be able to help you one way or another. 

Before we move on to our troubleshooting, if you happen to find this post while looking for a solution to a different problem, then visit our Galaxy A20 Help Guides page for we have already addressed some of the most common issues with this device. We may have already published articles that could help you fix your problem. Find issues that are similar to yours and feel free to use our solutions.

Troubleshooting a Galaxy A20 that keeps rebooting by itself

When troubleshooting a device that has a possible hardware or firmware issue, you have to be thorough in your steps to understand the problem and accurately fix it. Aside from that, you also need to be careful so as not to lose important files and data. That being said, here’s what you need to do…

First solution: Try running your phone in Safe Mode

The purpose of this procedure is for us to know if this problem is triggered by one or some of the apps you downloaded and installed on your phone. When in this mode, all third party applications are temporarily disabled. So if the problem is fixed, then it means that one of them or some, is causing the reboots. This is how you restart your phone in safe mode: 

  1. Press and hold the Power key until options show. 
  2. Tap and hold the Power off option until it changes into Safe Mode. 
  3. Tap the Safe mode icon to restart your device.
  4. Once the reboot is successful, you should see ‘Safe mode’ at the lower-left corner of the screen. 

While in this mode, try to use your phone and observe closely to know if it still keeps rebooting by itself. If the problem doesn’t occur, then here’s what you need to do next: 

  1. Restart your phone normal to boot into standard mode. 
  2. Remember the apps you installed about the time when the phone starts to reboot by itself. 
  3. Once you already have an app in mind, swipe down from the top of the screen to pull the notification panel down. 
  4. Tap the Settings icon on the upper-right corner. 
  5. Scroll to and then tap Apps. 
  6. Find and tap suspected app. 
  7. Tap Storage. 
  8. Touch Clear data and tap OK to confirm.
  9. Tap the back key once and then touch Uninstall. 
  10. Confirm that you want to remove the app from your phone. 

On the other hand, if the phone still keeps rebooting even in safe mode, then you have to move on to the next solution. 

ALSO READ: Samsung Galaxy A20 won’t charge, keeps showing ‘moisture detected’

Second solution: Delete the system cache

When the system cache is corrupt, your phone will tell you by having performance-related issues like freezes, lags and random reboots. The cache often gets corrupted or becomes obsolete after a firmware update. So, to rule this possibility out, you have to wipe the cache partition. Here’s how: 

  1. Turn off the device.
  2. Press and hold the Volume Up and Power keys.
  3. When the Galaxy A20 logo shows, release all three keys.
  4. Your Galaxy A20 will continue to boot up into the Recovery Mode. Once you see a black screen with blue and yellow texts, proceed to the next step. 
  5. Press the Volume down key several times to highlight wipe cache partition.
  6. Press Power key to select.
  7. Press the Volume down key to highlight yes, them and press the Power key to select.
  8. When the wipe cache partition is complete, Reboot system now is highlighted.
  9. Press the Power key to restart the device.

Once the reboot is complete, try to use your phone like you usually do and see if it still keeps rebooting by itself. If it still does, then you have to do the next procedure. 

ALSO READ: Samsung Galaxy A20 heating up fast or overheating. Here’s what to do…

Third solution: Master reset to fix phone that keeps rebooting

If this is just due to a firmware issue, then a reset will be able to fix it. But before that, if possible, create a backup of your important files and data as they will be deleted and you may not be able to recover them after that. After the backup, remove your Google account so that you won’t be locked out of your phone. When everything is ready, follow these steps to reset your phone: 

  1. Turn off the device.
  2. Press and hold the Volume Up and Power keys.
  3. When the Galaxy A20 logo shows, release all three keys.
  4. Your Galaxy A20 will continue to boot up into the Recovery Mode. Once you see a black screen with blue and yellow texts, proceed to the next step. 
  5. Press the Volume down key several times to highlight ‘wipe data / factory reset’.
  6. Press Power button to select.
  7. Press the Volume down key until ‘Yes’ is highlighted.
  8. Press Power button to select and start the master reset.
  9. When the master reset is complete, ‘Reboot system now’ is highlighted.
  10. Press the Power key to restart the device.

If your phone still keeps rebooting by itself after the reset, then it’s safe to assume that the problem is already with the hardware. It’s time to bring it to a local shop or any Samsung Experience store so that a technician can check it for you. 

ALSO READ: Samsung Galaxy A20 keeps losing signal. Here’s the fix.

I hope that we’ve been able to help you fix your Samsung Galaxy A20 that keeps rebooting by itself. We would appreciate it if you helped us spread the word so please share this post if you found it helpful. Thank you so much for reading!

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