What to do with Samsung Galaxy S9 that’s constantly restarting?

Frequent and/or random restarts is one of the most common performance-related issues even owners of high-end devices like the Samsung Galaxy S9 may encounter from time to time. While this problem is pretty annoying as you cannot properly use your device, it’s not really that serious. In fact, you can fix this issue on your own without any help from anyone or technician.

In this post, I will walk you through in troubleshooting your Galaxy S9 that constantly freeze. I’m gonna share with you the solution we’ve always been using in fixing issues like this. So, if you’re one of the owners of this device and are currently having to deal with a similar issue, continue reading as this article may be able to help you one way or another.

Before we move on to our troubleshooting, if ever you’re looking for a solution to a different problem, then make sure you drop in on our Galaxy S9 Help Guides page for we’ve already fixed some of the common issues with this phone. Look for issues that are similar with yours and feel free to use our solutions.

Now, going back to our troubleshooting, here’s what you need to do if your phone keeps on restarting…

  1. Check if the phone is heating up fast or overheating.
  2. Run phone in safe mode to temporarily disable all third-party apps.
  3. Wipe cache partition to replace the system cache.
  4. Factory reset your Galaxy S9.

Here’s the explanation why you need to do these things.

First, you need to check if your phone is heating up so fast or is overheating because if it does, the problem is with the hardware and not just due to any software-related problems. With that said, there’s no point in troubleshooting it on your own because there’s only so much you can do about a hardware issue. Instead, turn off your phone immediately so that it won’t overheat and after that, bring it to the store or shop so that a technician can check it for you.

Assuming that the S9 isn’t overheating, then it might be just an issue caused by some apps or the firmware. Run your phone in safe mode to temporarily disable all apps and continue using your phone. What you’re gonna do is actually wait for it to restart on its own while in that mode because if it still does that, the problem is probably firmware-related. However, if it doesn’t restart in safe mode, the next thing you have to do is find out which of your apps is causing the reboots and uninstall it.

Wiping the cache partition will delete all system cache but don’t worry as they will be replaced once the phone boots up. You only have to do this if the phone is still restarting even in safe mode. You have to reboot your phone in recovery mode to be able to do this.

Lastly, if wiping the cache partition doesn’t fix the problem, then you will have to factory reset your phone. But before the reset, make sure to backup important files and data that are stored in your phone’s internal storage as they will be deleted and you may not be able to retrieve them after the reset. Here’s how to effectively reset your Galaxy S9:

  1. Back up data on the internal memory. If you have signed into a Samsung account on the device, you have activated Anti-theft and will need your Samsung credentials to finish the master reset.
  2. Turn off the device.
  3. Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  4. 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).
  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 — delete all user data’ 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.

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!