How to fix Samsung Galaxy S10 that reboots randomly

When a high-end device like the Samsung Galaxy S10 reboots randomly, there could only be some minor issues with the firmware provided there are no signs of physical and/or liquid damage. While such problem is commonly caused by a failing battery, a new phone shouldn’t act like that unless there’s a manufacturing defect, which as of this writing, there are no reports about damaged batteries in a Galaxy S10 or its variants.

In other words, if it reboots randomly, it might all be due to a firmware issue as such is the case with most of the performance problems we encountered in the past. Since it’s not the first time we encountered this problem, we already have some things we can share with you that could help you fix this problem. So, if you’re one of the owners of this device and are currently being bugged by a similar problem, continue reading as this post may be able to help you.

Before we move on to our tutorial, if you happen to find this post while looking for a solution to a different problem, then visit our Galaxy S10 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 with yours and feel free to use our solutions.

Troubleshooting Galaxy S10 that reboots randomly

In this post, let’s try to rule out each possibility until we can determine what the problem with your phone really is. This would give us an idea how to fix the problem especially if it doesn’t concern the hardware. With that being said, here are the things you need to do to fix a Galaxy S10 that reboots randomly:

Run your phone in Safe Mode

The first thing we have to do is to find out if this problem is caused by a third-party application or not. By running the phone in safe mode, you’re temporarily disabling all downloaded apps. Once you’ve booted successfully, continue using your phone to know if the random reboots occur. Here’s how to run your S10 in safe mode:

  1. Turn the device off.
  2. Press and hold the Power key past the model name screen appearing on the screen.
  3. When SAMSUNG appears on the screen, release the Power key.
  4. Immediately after releasing the Power key, press and hold the Volume down key.
  5. Continue to hold the Volume down key until the device finishes restarting.
  6. When Safe mode appears in the bottom left corner of the screen, release the Volume down key.

If the problem seems fixed while the phone is in this state, then it means that there is an app that triggers the reboots. You need to find out which of your apps is the culprit and uninstall it. However, if your Galaxy S10 reboots randomly even in this mode, then the problem could only be with the firmware.

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Wipe cache partition to fix random reboots

The next thing you have to do if the problem occurs even if your phone is in safe mode is to delete the system cache. The cache is actually a collection of hundreds of small and temporary files that are created by the system so that your phone will run smoothly after the first boot. However, those files are also prone to corruption and when that happens, performance issues like this may occur. It is therefore, recommended that you delete the system cache every now and then so that it will be replaced with a new one and here’s how you do that;

  1. Turn off the device.
  2. Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  3. When the Android logo displays, release all three keys.
  4. An ‘Installing system update’ message will show for 30 – 60 seconds before the Android system recovery menu options appear.
  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.

It will take a little longer for you phone to boot up after this procedure as it will create new cache for all services. But once the Galaxy S10 becomes active, continue using it to know if it reboots randomly after this procedure. If so, then you have no other choice but to reset your phone.

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Master Reset your Galaxy S10

After replacing the system cache and your phone reboots randomly still, a reset is necessary. A master reset will be able to fix firmware issues especially those that seem to have occurred without apparent reason or cause. However, make sure to create a backup of your important files and data before the reset as they will be deleted during the process. After that, remove your Google account so that you won’t be locked out of your device after the reset.

  1. Turn off the device.
  2. Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  3. 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).
  4. Press the Volume down key several times to highlight ‘wipe data / factory reset’.
  5. Press Power button to select.
  6. Press the Volume down key until ‘Yes — delete all user data’ is highlighted.
  7. Press Power button to select and start the master reset.
  8. When the master reset is complete, ‘Reboot system now’ is highlighted.
  9. Press the Power key to restart the device.

I hope that we’ve been able to help you fix the problem with your device. 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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