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Samsung Galaxy S7 Edge screen turned black after the Nougat update [Troubleshooting Guide]

  • Read and understand why a high-end device such as the #Samsung Galaxy #S7Edge may experience the black screen of death (BSoD) issue after the recent Android Nougat update and learn how to troubleshoot it in a bid to fix the problem.

The black screen of death or blank display has been haunting a lot of smartphone owners for years. The problem may range from a very minor issue such as system crash or freezing apps that affected the phone’s performance to more complex problems with the firmware or even the hardware.

As the owner, it is your job to know what the problem with your phone is by performing basic troubleshooting procedures. There should be a reason why an issue occurs or why the phone behaves the way it does after the Nougat update. There’s no easy way to fix the problem if, in the first place, you don’t know what it’s all about.

In this post, I will tackle three related issues involving the Samsung Galaxy S7 Edge. If you’re one of the owners of this device and are currently experiencing screen related or performance issues, then continue reading this article as it may be able to help you.

But before we jump right into our troubleshooting, if you happen to find this page because you own the same device but are looking for a solution to a different issue, then try to visit our troubleshooting page for we have already answered hundreds of issues reported by our readers before. Find ones that are similar with yours and use the solutions we suggested. If they don’t work for you or if you need further assistance, contact us by simply filling up our Android issues questionnaire.

Samsung Galaxy S7 Edge screen turned blank after Nougat update was downloaded

Problem: Hi guys. I have a problem with my Galaxy S7 Edge and it started after I downloaded and installed the new Android Nougat update. Since then, my phone no longer display the usual picture. I mean it’s not showing the Home screen, it’s just black. It seems like the bulbs behind the screen are still lit somehow but the display is just not there. No matter what I do, the display remains blank and I’m kind of panicking right now because I don’t know what to do and I badly need my phone. Is there something you can do about this, guys? Thanks.

Troubleshooting: The black screen of death is actually not so common but we’ve already quite a lot of complaints from our readers who have encountered this problem. It’s not just exclusive to the Galaxy S7 Edge as we know for a fact it was also happening with the S3, S4, S5 and even the Note 5. In fact, even non-Galaxy devices may encounter this issue. In other words, you may encounter this problem as long as you own a smartphone regardless of the operating system. In this post, however, I will be tackling this issue that occurred on a Galaxy S7 Edge and this is what you have to do…

Step 1: Force restart your phone

We don’t know if the problem is due to the system that crashed but, at least, that’s what we have to assume for now. That said, I need you to force reboot your phone by pressing and holding down the Volume Down button and the Power key together for 15 seconds.

Provided the phone has enough battery and the problem was indeed caused by a system crash, your device should reboot normally once you follow this procedure. If, however, it does not respond, try one more time just to make sure you’re doing it correctly and if still no, then move on to the next step.

Step 2: Charge your S7 Edge

I still think at this point that your phone just crashed after the update and it could be that the battery got drained completely that’s why it’s not turning on. So, at this point, I want you to plug the charger into the wall outlet and then connect your phone to it. Provided that the battery and the hardware of your device are good, it should charge normally but if it doesn’t respond, then do the forced reboot procedure again but this time while the device is plugged in.

Step 3: Attempt to boot your phone in Safe mode

There’s a chance that the problem is due to one or some of your third-party apps that crashed and affected the overall performance of your device. We need to rule out this possibility and you can do so by booting your device in safe mode. By doing this, you’re temporarily disabling all third-party apps and services so if our suspicion that one or some of them is preventing the device from booting up, then your phone should be able to power on in Safe mode. Here’s how…

  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.

Assuming the phone successfully booted up in this mode, then you need to find out which app is causing the problem. Begin your search from your most recent installation and uninstall each suspected app until you can pinpoint the culprit. However, if the phone still refused to boot up in safe mode, then move on to the next step.

Step 4: Attempt to boot in recovery mode

If you weren’t able to find the culprit or if you device failed to boot in safe mode, then you have no other choice but to try to boot in Recovery mode. The Android system recovery is very helpful when it comes to this kind of issue because even if there’s a serious problem with the system, 90% of the time the device can still enter the recovery mode and once successful, you can do a couple of things to try to fix this problem and they’re as follows:

Wipe Cache Partition

  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.

Perform Master Reset

  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.

After the reset and the phone still refuses to turn back on, then it’s time you brought it to the store or technician and have it checked. The firmware may need to be reinstalled.

Galaxy S7 Edge stuck on Samsung logo

Problem: My S7 Edge went to the black screen with the samsung logo and blue light and it wont let me do anything. I can’t turn it on or off, I let the battery drain over night then fully charged it when it was 100% charged I turned the phone on and it still wont go passed the screen. Please help!!!

Troubleshooting: If your phone doesn’t have liquid damage or hasn’t been dropped, then most likely it is a firmware related problem. In fact, system crash is a very common issue not just in Samsung users but also to all devices running android system.

In this section, we have to focus on troubleshooting the firmware of your phone to know whether an app caused the issue or the system itself needs a revamp. So, here are the methods that will help you fix the issue.

Step 1: Uninstall third-party apps for it may be caused the issue

Basically, the safe mode is the diagnostic state of the device wherein all third-party apps will be temporarily disabled and only the pre-installed apps will be loaded in the system. So, while in this mode and the issue is not happening, then a third-party apps may have triggered it. You can try finding and uninstalling suspected apps starting from the recent one you downloaded until the problem is fixed. To boot in safe mode, follow the steps above.

Step 2: Delete the system cache of the phone

This procedure will be performed on your device if you haven’t done yet the master reset yet. Deleting the system cache of the phone is necessary especially if its firmware had been updated so that the dated and corrupt caches will be removed from the cache directory of the device. Here are the steps that you should 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.

After the procedure, observe closely and wait if there are changes on the performance of the phone. If it is still the same, perform the next procedure.

Step 3: Reset the device for it may be a firmware issue

The master reset procedure should be your last option if Safe mode and deleting the system cache could not fix the problem of the device. The good thing is, in resetting your phone several issues will be solved right after performing the procedure. But take note that all your files and data will be erased, so, before you proceed to the steps make sure to transfer all of it to your SD card or personal computer. To reset your device, follow the steps above.

Galaxy S7 Edge won’t turn on after being plugged in to charge

Problem: I plugged my phone in to charge today and it went black wont turn on no matter what. blue charging light not on and battery indicator not on screen. nothing is working to get it to turn on.

Solution: This type of issue is related to the first problem that we discussed above. The first thing that you should do is to verify if it is just a glitch in the system that caused the issue. To do this, just press and hold the Power and Volume Down keys together for 10-15 seconds until the device reboots. However, if there’s no changes on device performance charge your phone for 15 minutes and while connected to charger attempt to boot it on Safe mode. If the device reboots, then the battery is fine and obviously a third-party app triggered it. Uninstall each app you downloaded and see if the problem is gone. However, if the device won’t boot up while charging try using another charger and observe closely if it is responding. If not, then the battery may be defective and we can’t do anything on your phone unless you have to bring it to the nearest shop in your area and let the technician replace it.

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