How to fix your Samsung Galaxy S7 that reboots on its own after Nougat update [Troubleshooting Guide]

Issues that have something to do with powering up might be a sign for a more serious problem with the hardware but when a phone as powerful as the Samsung Galaxy S7 Edge starts to reboot on its own after a major firmware update like the Android Nougat, the issue might have something to do with the firmware itself. But it could be the other way around depending on how the phone behaves that’s why we really can’t be certain what’s happening with your phone. We need to troubleshoot your device to know what the problem is.

We will walk you through in troubleshooting your device. We just have to consider every possibility and rule out each of them until we arrive at a point where it would be easier to pinpoint the problem. Once we know what the issue is all about, we can easily find a solution or a method we need to try to fix the problem. If you own this phone and are currently being bugged by similar problem, then continue reading as this post may be able to help you.

Now, before anything else, if you have other issues with your phone, make sure you drop by our Galaxy S7 troubleshooting page for we have already provided solutions to hundreds of problems reported by our readers. Odds are that we may have already provided a solution to the problem you currently have so try to find issues that are similar with yours on that page and feel free to use the solutions we suggested. If they don’t work or if you need further assistance, fill up our Android issues questionnaire and hit submit to contact us.

Step-by-step guide to troubleshooting Galaxy S7 that keeps restarting

It is imperative that you try to troubleshoot your phone that has a potential firmware problem as soon as possible before the issue becomes serious and that’s the purpose of this post. Now, before we go to the steps, here’s one of the messages from our readers that best describes this issue…

Problem: My Galaxy S7 keeps restarting on its own. I will have it on and while I’m using it, it will restart. I can’t have it on for more than 2 minutes without it restarting. I tried all of the reboot options. I don’t want to factory reset it because none of my files are backed up and it won’t stay on long enough at one time for me to back them up. I did notice that this started happening when I installed the Nougat update. I didn’t want to update it because every time I update it something goes wrong. But my phone basically forced me to update it. This has been going on for about 3 days now. What do I do?

Solution: As you stated that the issue started after the upgrade, then probably it is a software related problem. It could be the old data and files had not been completely removed from your phone during the update process that created a conflict in the system. This time, all you need to do is to rule out the issue by doing the software troubleshooting procedures on your phone. These are the procedures that you should do:

Step 1: Forced Reboot your phone

Since you cannot remove the battery of the device, this procedure is a simulated battery disconnect which is the equivalent of the battery-pull procedure. The purpose of this method is to refresh your device’s memory and to eliminate any system glitches if possible.

To do this, just press and hold the Power and Volume Down keys together for 10 seconds and wait until it reboots. After the procedure, observe the device if it still reboots. If so, move on to the next step.

Step 2: Boot your Galaxy S7 on Safe mode

Although this android environment won’t fix the problem, it is imperative that you should follow this procedure so that we can verify if a culprit that caused the device to reboot without apparent reason is one or some of the apps your installed. In this state, only the built-in apps will run in the system and if your phone is not restarting anymore, then there’s an app that you need to find and uninstall to resolve the problem.

This is how you reboot your phone in safe mode…

Turn your Galaxy S7 off.
Press and hold the Power button.
Once the ‘Samsung Galaxy S7’ logo appears, release the Power key and immediately press and hold the Volume Down button.
Continue holding the button until the phone finishes rebooting.
Once you see the text “Safe mode” at the bottom left corner of the screen, release the Volume Down button.

Assuming the phone has successfully booted up in this mode, then find the apps that cause the problem and deal with them one by one. The first thing you should do is clear their caches and data, then try to update them if possible and lastly, uninstall them if the issue persists.

How to clear app cache and data on Galaxy S7

From any Home screen, tap the Apps icon.
Tap Settings.
Tap Applications.
Tap the desired application in the default list or tap Menu icon > Show system apps to display pre-installed apps.
Tap Storage.
Tap Clear cache.
Tap Clear data and then tap OK.

How to update apps on Galaxy S7

From any Home screen, tap the Apps icon.
Tap Play Store.
Tap the Menu key and then tap My Apps. To keep your apps automatically updated, tap the Menu key, tap Settings, and then tap Auto-update apps to select the check box.
Choose one of the following options:
- Tap Update [xx] to update all applications with updates available.
- Tap an individual application and then tap Update to update a single application.

How to uninstall applications from Galaxy S7

From any Home screen, tap the Apps icon.
Tap Settings.
Tap Applications.
Tap the desired application in the default list or tap Menu icon > Show system apps to display preinstalled apps.
Tap Uninstall.
Tap Uninstall again to confirm.

Step 3: Clear the System Cache Partition

This procedure will delete all old files stored in the cache directory that the device had been using before the new version of firmware has been installed on your phone. Don’t you worry, wiping the cache partition won’t delete any of your apps or contacts, instead, it will remove all leftover files that might caused the issue on your phone. Here’s how:

Turn off your Samsung Galaxy S7.
Press and then hold the Home and Volume UP keys, then press and hold the Power key.
When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
Using the Volume Down key, navigate through the options and highlight ‘wipe cache partition.’
Once highlighted, you may press the Power key to select it.
Now highlight the option ‘Yes’ using the Volume Down key and press the Power button to select it.
Wait until your phone is finished doing the Master Reset. Once completed, highlight ‘Reboot system now’ and press the Power key.
The phone will now reboot longer than usual.

Step 4: Bring the phone back to its factory default settings

After the wiping the cache partition continue to use your phone and observe closely and try to connect it again to your home Wifi. If the device still unable to connect, then it might be a serious firmware issue and you don’t have a choice but to reset your phone to resolve the problem. But before performing the reset procedure, we recommend that you should create a backup in all your files like: music, photos and contacts because all of it will be deleted. This is how to do the master reset:

Turn off your Samsung Galaxy S7.
Press and then hold the Home and Volume UP keys, then press and hold the Power key.
When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
Using the Volume Down key, navigate through the options and highlight ‘wipe data / factory reset.’
Once highlighted, you may press the Power key to select it.
Now highlight the option ‘Yes — delete all user data’ using the Volume Down key and press the Power button to select it.
Wait until your phone is finished doing the Master Reset. Once completed, highlight ‘Reboot system now’ and press the Power key.
The phone will now reboot longer than usual.

By the way, in case you don’t know your Google ID and its password, you better disable the Factory Reset Protection prior to the reset so you won’t be locked out of your phone after that:

From any Home screen, tap the Apps icon.
Tap Settings.
Tap Cloud and accounts.
Tap Accounts.
Tap Google.
Tap your Google ID email address. If you have multiple accounts setup, you will need to repeat these steps for each account.
Tap Menu.
Tap Remove account.
Tap REMOVE ACCOUNT.

I hope this guide helps.

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