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How to fix Samsung Galaxy S7 Edge that turned off on its own and won’t turn on

We have received quite a handful of complaints from our readers who own the #Samsung Galaxy S7 Edge (#S7Edge) and among the most commonly reported issues are random shutdowns and being unresponsive with a black screen. Power-related concerns need to be addressed as soon as possible as they may be a sign of serious hardware problems.

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In this post, I tackled some issues that were sent to us by our readers including a unit that, according to the owner, turned off without apparent cause and won’t turn back on. There are other issues that were addressed in this post so if you’re experiencing similar problem, read through this article to see if it can help.

Before anything else though, if you have other concerns, visit our S7 Edge troubleshooting page for we have already addressed hundreds of issues that were reported to us since the release of the device. Try to find ones that are the same or similar with yours and use the solutions we suggested. If you need further assistance, you can always contact us by completing our Android issues questionnaire.

Galaxy S7 Edge keeps shutting down on its own

Problem: Hi guys! I have a problem with my phone which is a Galaxy S7 Edge. First, the screen went black so I did what you guys suggested to do the Force Reboot procedure and it booted up again. I was able to use it for a few days thanks to you suggestion. On Monday, however, the phone shut down on its own so I turned it back on and it did, actually. Later that day, it turned off again but I was able to turn it back on then the cycle repeats every now and then. Is this some kind of a hardware issue or this is all in the firmware? I need your guidance. Thank you!

Troubleshooting: Power- and performance-related concerns are now becoming more common especially for relatively “older” devices. It could be that the battery has already deteriorated, some files of the firmware got corrupted, or anything else. In your case, though, I think the best thing you can do is troubleshoot the firmware right away and if you cannot determine what the problem is, then you need help from a technician who can do tests to see if it’s a hardware problem.

Step 1: Try wiping the cache partition especially if the issue started after an update

The system cache and other cached files can easily get corrupted during update. They can also be corrupted due to frequent turning off or shut downs. The good thing is that they can be deleted without causing any adverse effects on the firmware. In fact, we often advice our readers to delete the system cache from time to time to optimize the phone’s performance. For this problem, it’s the first thing you need to do:

  1. Turn off the phone.
  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 wiping the cache partition. Once completed, highlight ‘Reboot system now’ and press the Power key.
  9. The phone will now reboot longer than usual.

Step 2: Reset your phone to bring it back to default settings

If wiping the cache partition didn’t yield any favorable results, then you have no other option but to reset your phone. Boot it up in Recovery Mode and do the Master Reset from there. What it does is it reformats the data partition, thus deleting everything that is saved in the internal storage. So, make sure you backup your files and data before doing so.

  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. 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.
  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. 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.
  5. Using the Volume Down key, navigate through the options and highlight ‘wipe data / factory reset.’
  6. Once highlighted, you may press the Power key to select it.
  7. Now highlight the option ‘Yes — delete all user data’ 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 3: Send the phone in for checkup and/or repair

After the reset and the problem remains, then you need to send it in for proper checkup and testing. The tech will be able to tell what the problem is and determine whether it can be repaired or the device has to be replaced.

As the owner, however, you have to explain to the technician what’s happening with the device and what might have happened or occurred prior to the problem. Remember, information is key to finding what the issue is and how it would be fixed.

Galaxy S7 Edge turned off after playing YouTube videos

Problem: Hello there! So a little over a week ago I was watching YouTube videos before I went to bed. When I finished, I plugged in my phone to charge and went off to sleep. When I woke up, my alarm was going off, and the screen was black. Ever since then, the screen is completely black, even when I try to reset it nothing pops up on the screen. I haven’t dropped it and I used it before I charged it so I have no idea what it could of been. Any thoughts? PS I am unaware of the android version.

Solution: It seems like the firmware of your device crashed. This issue is often experienced not only by Samsung devices but by other Android users as well. Based on reports from other user who have encountered this problem, there are procedures that might fix it.

Step 1: Force reboot your Phone

Since Galaxy S7 Edge doesn’t have a user-removable battery, you cannot perform the usual battery pull procedure done by owners of phones that have removable batteries. However, Samsung engineers already thought of it. That’s they’ve hardwired a procedure that can be done to simulate the virtual battery disconnect procedure and this is what we call as Forced Reboot. Simply, press and hold both the Volume Down button and the Power key together for 10 to 15 seconds until the device restarts.

Step 2: Charge your device

If step failed, then you need to plug your phone to allow it to charge even for a few minutes. There is a possibility that the battery was drained totally and that there isn’t enough power left to turn the phone on.

You’re not actually just charging your handset, you are also trying to find out how the phone responds if it can detect electric current flowing through its circuits.

The usual response is to display the charging icon and to light up the LED. If these signs don’t show, it’s possible that the problem is with the hardware. Otherwise, you can continue troubleshooting the firmware.

Step 3: Boot to Recovery mode

Performing this procedure can help you determine if there’s an issue with the software or the hardware of your device. But if it boots up completely then, the issue is with the firmware so proceed by wiping the cache partition. To boot into recovery mode and wipe the cache partition, follow the procedure you see above.

Step 4: Bring your device to the technician

If all procedures above fail then, bring your phone to the nearest accredited shop in your area to have it fixed or you can go to your provider.

After some tests the technician will tell you if there’s a chance that it can be fixed or if it will be replaced by a new unit.

Galaxy S7 Edge turned off on its own, won’t turn back on

Problem: My S7 Edge turned off itself after I sent a message and won’t turn on… combination keys don’t work , plug in doesn’t work… no lights , no signs , nothing… if someone calls me, they get the message that my phone is off.

Solution: This issue is common not only in Galaxy S7 but to other Samsung devices as well. There are factors to consider why your phone is having an issue like this. One of the main reasons is due to system crashing that makes the device refused to turn on, enable to detect the charger as well as phone keys are not working. However, the good news is you can fix the issue by following the solutions that we will be providing.

Here are the troubleshooting procedures that you need to do:

Step 1: Force restart your phone

Through this procedure, you’re refreshing your device’s firmware and whatever glitches it has. This is the equivalent to battery pull procedure that Galaxy device owners often do when their devices have removable batteries. All you need to do is press and hold the Volume Down button and the Power key together for 10 to 15 seconds.

Step 2: Allow your phone to charge

There is a possibility that the battery of the phone got drained. That could be the reason why the first step failed in the first place. So, it’s best that we allow the phone to charge even for a few minutes.

After 5 minutes of charging and your device is still unable to turn on, then perform the first procedure again. However, keep your phone plugged in.

Step 3: Try to boot your Galaxy S7 Edge in Recovery mode

In recovery mode, the hardware will be powered up and if there is no issue then, the device will turn on without a problem. In this case, the issue is with the firmware. This is how you boot your phone into the Recovery Mode.

  1. Press and then hold the Home and Volume Up keys, then press and hold the Power key.
  2. When the Samsung Galaxy S7 Edge shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  3. When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.

If your phone can successfully boot into this mode, then proceed to the wiping of the cache partition by using the Volume Down keys and the Power button to select the option.

Step 4: Boot the device in Safe mode

Sometimes third-party apps crash and it often affects the general performance of the firmware. We need to rule this possibility out. So, you have to boot your Galaxy S7 Edge in Safe mode to temporarily disable downloaded apps.

Booting the phone up in safe mode will immediately isolate the problem. You can easily determine if the problem is with the pre-installed apps or third-party ones. Here’s how you do it.

  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 key until the device finishes rebooting.
  4. You may release it when you can see “Safe mode” in the bottom left corner of the screen.

If your device still refuses to boot up in safe mode after all the things you did, then there’s no point in continuing your troubleshooting.

Step 4: Bring to a local shop

After performing the procedures above and the issue is still not fix then, you can bring the phone back to the store or to a local shop and let the technician check it for you. The tech will do some tests and depending on the results, he will either recommend if the device will be repaired or replaced.

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