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How to fix Samsung Galaxy S7 Edge that randomly shuts down and restarts after Android 7.1 Nougat update

  • Read and understand why premium devices like the #Samsung Galaxy S7 Edge (#S7Edge) still has tendencies to experience serious firmware-related issues even after being updated to the latest firmware version (Android 7.1 #Nougat). Also learn what you have to do if any of these issues happen to your device.

More often, unresponsive screen, freezes, lags and reboots without apparent reason are symptoms that the device is experiencing a firmware related issue. In this post, we will walk you through on how to fix such problems and for you to know what the key reasons why they are happening on your phone are. Although we fix most issues that our readers sent to us but there are also issues that we can’t fix especially if they are hardware related problems.

We have to discuss two related issues here wherein the device restarts and shuts down without apparent reason. In most cases there are few possibilities to consider why your phone has these kinds of problems. It may be because of a third-party app, corrupt caches, the firmware has recently been updated or has a hardware problem. So, to understand more about the issue you can read the steps provided below.

Read on to understand more about these issues and learn how to fix them or, at least, troubleshoot your Galaxy S7 Edge in case one of these may happen to you. If you have other problems, however, make sure you visit our S7 Edge troubleshooting page for we have already addressed a lot of problems that occurred with this device. We may already have a solution to your problem so try to find issues that are similar to yours. On the other hand, if you need further assistance, you can always contact us by filling up our Android issues questionnaire.

Galaxy S7 Edge lags, freezes then shuts down on its own after the update

Problem: I own the Galaxy S7 Edge phone and a few days ago there was this notification that it needs to be updated or something so I downloaded the update and then everything went well or so I thought. The phone rebooted without me doing it and I’ve actually used by phone for a few days until one day it started to lag and then it started to freeze. It became more frequent like it freezes every few minutes now and then it started to just shut down on its own. I don’t know why this is happening but it’s very annoying. So can you guys help me fix this issue? Thanks.

Troubleshooting: In other words, your phone is currently bugged by the most common performance issues. Actually, when it occurs, it starts out as a lag then it progresses into freezes with its frequency growing by the minute. As you continue using your phone, you’ll notice that it became really slow and there are cases wherein the device randomly reboots or shuts down. While it’s clear enough that the problem started after the update, we can’t simply conclude that it’s an issue with the firmware since there are other factors that may have also contributed to this kind of issue. It is therefore, imperative that you perform basic troubleshooting to determine what the problem is all about, know what the cause is and learn how to fix it. With all that being said, here’s what I suggest you do…

  1. Boot your phone in Safe Mode. It’s necessary so that you’d know if your downloaded apps have something to do with the problem. If the lags, freezes and shutting downs disappear when in this mode, it’s clear enough that one or some of your apps is causing the problem. Find it and uninstall it so that your phone will normally again.
  2. Wipe the cache partition. By doing this, you’re actually forcing the phone to create new system cache to replace obsolete or corrupt ones created by the previous firmware. Doing this won’t delete any of your files or data and it’s very effective in addressing firmware issues that started to show after an update. You need to boot your phone in recovery mode to be able to do this.
  3. Master Reset your device. If the phone still occurs in safe mode and wiping the cache partition didn’t fix the problem, then you really have to reset your device to bring it back to its factory default settings. Your files and data will also be deleted so make sure you make a backup of the most important ones.

I hope this helps.

Samsung Galaxy S7 Edge App freezes and reboots randomly after updating its system

Problem: Hi! I purchased my S7 Edge last month but now it started to reboot without apparent reason. Yesterday I tried to turned it on and it’s working again but when I open an app my phone freezes and restarts and stuck in Samsung logo. If you can help me fix my issue that would be great. Thanks!

Solution: Hello! This problem will range from firmware to hardware related issue. If your phone was dropped or soaked in the water then that may be the reason that the device could not boot up completely. But if not, then it could be a firmware problem. So, to make sure what really the problem is, you can isolate the issue by following the steps provided below:


Step 1: Forced reboot your phone

There is a possibility that the device has a minor firmware issue, so, performing the force reboot procedure might fix the problem. This method is equivalent to a battery-pull procedure to other devices that has a removable battery. To do this, just press and hold the Volume Down and Power keys together for 10 seconds. If the phone reboots, then it might be a minor firmware related issue. But if it refuses to turn on you can proceed to the next step.

Step 2: Restart your Phone in Safe mode

If you recently downloaded some apps before the issue started that could be one of the possibilities that your phone stuck in Samsung logo. By booting it on Safe mode all the downloaded applications in the system will be stopped from running and if the device will turn on without an issue it should be one of the apps is culprit. Here are the steps to boot on Safe mode:

  1. Press and hold the Power key.
  2. As soon as you can see the ‘Samsung Galaxy S7 EDGE’ on the screen, release the Power key and immediately hold the Volume Down key.
  3. Continue holding the Volume Down button until the device finishes rebooting.
  4. You may release it when you can see ‘Safe mode’ in the bottom left corner of the screen.

This procedure won’t actually fix the issue but to give you hint if one of your third-party apps is causing the problem. If there’s no progress after this procedure you can immediately perform the next step for further troubleshooting.

Step 3: Delete the System cache  of your Samsung Galaxy S7 Edge

If your device has a firmware issue this procedure will help you fix it. Remember that caches can be easily corrupted especially if you updated the system of your phone. So, this time all you need to do is to clean up the cache directory so that the device can create newer caches that could run smoothly in the system. To delete the system cache, follow the steps below:

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

Step 4: Master reset the device

After all the procedures above and still the issue is happening on your phone,then your last resort is to reset the device. In this procedure there is a chance that all minor issues on your phone will be fixed after performing this procedure. But take note before resetting your phone make sure to backup all your files because all of it will deleted. Here’s how to Master reset your phone:

  1. Backup your data.
  2. Remove your Google account.
  3. Disengage screen lock.
  4. Turn off your Samsung Galaxy S7.
  5. Press and then hold the Home and Volume UP keys, then press and hold the Power key. NOTE: It doesn’t matter how long you press and hold the Home and Volume Up keys, it won’t affect the phone but by the time you press and hold the Power key, that’s when the phone starts to respond.
  6. When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  7. When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds. NOTE: The “Installing system update” message may show on the screen for several seconds before displaying the Android system recovery menu. This is just the first phase of the entire process.
  8. Using the Volume Down key, navigate through the options and highlight ‘wipe data / factory reset.’
  9. Once highlighted, you may press the Power key to select it.
  10. Now highlight the option ‘Yes — delete all user data’ using the Volume Down key and press the Power button to select it.
  11. 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.

Samsung Galaxy S7 Edge will suddenly shuts off and reboot after updating the system

Problem: I have a 10 months old Galaxy S7 Edge but started the other day it restarts itself randomly. When I’m surfing the web or opening an app my phone will suddenly shuts off and restarts itself. I don’t have a warranty on my phone. I’d really appreciate it if you help me. Thanks!

Solution: If we have to look at the symptoms it seems like your phone has a firmware related issue. But since, it’s too early to jump directly to the conclusion the first thing that you should do is to determine what really caused the problem. In fact, this issue is common to all Galaxy S models especially if there’s an update happened to the firmware. At this point, you can boot your phone in Safe mode to disable all third-party apps from running in the system. So, if the device won’t shuts off while in this mode then there’s a culprit in the system that triggered the issue. You can uninstall every app you installed recently until the issue will be fixed.

However, if the device still function abnormally then you can perform the next procedure by deleting the system caches of the phone. The caches are the directory where the files are stored and responsible for the device to run smoothly every time you have to open an app or turn on the device. So, deleting the caches is advisable to all users  especially if you updated the system of your phone. However, if Safe mode and deleting the system caches won’t worked on your device,then performing master reset is your last chance to fix the issue.  This procedure will bring back the device to its default settings and removing all those leftover caches that had been corrupted and outdated. But before going through make sure to backup everything because all your stored files will be deleted.


We are always open to your problems, questions and suggestions, so feel free to contact us by filling up this form. This is a free service we offer and we won’t charge you a penny for it. But please note that we receive hundreds of emails every day and it’s impossible for us to respond to every single one of them. But rest assured we read every message we receive. For those whom we’ve helped, please spread the word by sharing our posts to your friends or by simply liking our Facebook and Google+ page or follow us on Twitter.


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  1. I have the same problems that John’s phone. The phone stays dead, sometimes with the led indicator blinking in green and blue, and I have to wait until the battery is empty to try to do something. I’ve installed the latest update on June 10. But there is no solution. Now the phone is useless because it begins to reboot until its dead again.

  2. Dear,
    Nothing above will help if there is no reaction from the phone.
    The only time it’s react is when the battery is empty.
    After een few days it.s again start to reboot and so on and so one.
    Totaly rubbish

  3. These are great suggestions, but I cannot do any of the steps mentioned above before it automatically reboots again. I guess I will have to wait until the battery dies.

  4. Dear Sir


    My S7 edge restarts on every day and same time. Your valuable comments highly apprecciated.


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