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How to troubleshoot Samsung Galaxy S7 Edge Black Screen Of Death (BSoD) issue

We’ve been receiving tons of reports not just from Samsung Galaxy S7 Edge owners but also from other Android phone users regarding the black screen of death (BSoD) issue. This problem is not exclusive to just one brand or model, it also affects devices that run the Android operating system. One of the most common symptoms of this problem is when the screen becomes blank and the hardware buttons are unresponsive.

Unlike to other power-related issues, the BSoD is more complicated because in this case, the system and other services maybe crashing and that is why your device is unable to turn on or respond to whatever you want it to do. Although we’ve published posts regarding this issue several times already, for the benefit of other users I’ll address this problem once again in this article.

But before anything else, if you have another issue with your phone, drop by our S7 Edge troubleshooting page as we have already addressed hundreds of issues reported by the owners. Odds are that there are already existing solutions on our website or at least, there are similar problems we already fixed. So, try to find ones that are similar or related to your problem. If you need further assistance, however, feel free to contact us by filling up our Android issues questionnaire.

Troubleshooting Galaxy S7 Edge with black and unresponsive screen

Problem: Hi, I have a Samsung S7 Edge. Today, I fully charged my phone and then I walk to my car. When I got to my car I start watching a video from Whatsapp and suddenly the video crash and the phone too. The phone turn off and restart by itself. The logo came on and then it pass to the animation of SAMSUNG letters and didn’t load correctly. Again, it turn off and restart by itself. It still doing this for like 15 minutes and never restart correctly. Now, is black screen and the top led is fading blue and baby blue. This led light is always like that when you are turning on the phone. I have tried EVERY reset process that people have record in Youtube and also I did research in the Web and they are the same process that I took before. Please I need your HELP. What can I do to fix my phone. I don’t know my Android version.

Solution: The most common reason that the device is having this issue is due to system crashing. In other words, the firmware and other services stopped working and left your device to become unresponsive. Based on your statement that the LED above the screen is lighting up while the screen is black, it is a clear indicator that the hardware components are all fine and this is just a software issue. The good thing is, this problem can be fix by your own without consulting any technician and spend money for repair. These are the methods you need to do:

Perform Forced Reboot on your Galaxy S7 Edge

Sometimes, due to several applications running simultaneously it’s possible that the firmware will crash and cause the device to function abnormally. So, this time if you haven’t tried restarting your phone this would be the right time that you should do so.

Doing this will simulate battery disconnect which has similar effect as with the battery pull procedure we often do to phones with removable batteries. By doing so, all running applications that might be preventing your phone from booting up will be closed.

To do this, press and hold the Power and Volume down keys at the same time for 10 seconds and wait until your phone has booted up. If it it boots up successfully, then, this is just a glitch in the system. But if still unresponsive, connect your phone to the charger and repeat the method. This time, if it still not working you can proceed to the next method.


Try to boot your phone up in safe mode

Sometimes apps may cause the firmware to crash and have similar symptoms as with the black screen of death. It is imperative you try to isolate the problem to know if this issue is due to some apps that might have gone rogue. Try running your phone in safe mode by following these steps:

  1. Turn the device off.
  2. Press and hold the Power key past the Samsung Galaxy S7 edge screen.
  3. When “SAMSUNG” appears on the screen, release the Power key.
  4. Immediately after releasing the Power key, press and hold the Volume down key.
  5. Continue to hold the Volume down key until the device finishes restarting.
  6. Safe mode will display in the bottom left corner of the screen.
  7. Release the Volume down key when you see Safe Mode.

Assuming your phone successfully booted up in safe mode, you can now rest assured that the problem is a minor one. You can then proceed to finding out which of the app is causing the problem and uninstall it.

  1. From any Home screen, tap the Apps icon.
  2. Tap Settings.
  3. Tap Applications.
  4. Tap the desired application in the default list or tap Menu icon > Show system apps to display pre-installed apps.
  5. Tap Uninstall.
  6. Tap Uninstall again to confirm.

Try to restart your phone in Recovery Mode

If your S7 Edge failed to boot up in safe mode, then you should try booting it up in recovery mode, which powers all hardware components but doesn’t load the usual interface you see when the phone is running normally. What we’re trying to accomplish here is to know if your phone is still capable of running in this mode because if it is, the problem is most likely firmware-related. Otherwise, there’s a possibility that it’s a serious hardware problem.

Assuming you’re successfully booted your device in this mode, try wiping the cache partition first and if that doesn’t make your phone boot up successfully, try doing the factory reset.

How to boot Galaxy S7 Edge in recovery mode and wipe cache partition

  1. Turn off the device.
  2. Press and hold the Volume Up key, Home key, and Power key at the same time.
  3. When the phone powers on, the Android System Recovery screen appears approx. 30 seconds later.
  4. Release all of the keys.
  5. Press the Volume down key to highlight “wipe cache partition.”
  6. Press the Power key to select.
  7. Press the Volume down key to highlight “yes” and press the Power key to select.
  8. When the wipe cache partition is complete, “Reboot system now” is highlighted.
  9. Press the Power key to restart the device.

How to do the Master reset from the recovery mode

  1. Turn off the device.
  2. Press and hold the Volume Up key and the Home key, then press and hold the Power key.
  3. When the Android logo displays, release all keys (‘Installing system update’ will show for about 30 – 60 seconds before showing the Android system recovery menu options).
  4. Press the Volume down key several times to highlight “wipe data / factory reset”.
  5. Press Power button to select.
  6. Press the Volume down key until ‘Yes — delete all user data’ is highlighted.
  7. Press Power button to select and start the master reset.
  8. When the master reset is complete, “Reboot system now” is highlighted.
  9. Press the Power key to restart the device.

If the phone cannot boot up in recovery mode, then it’s time you brought it to the shop to have a tech take a look at it. It’s possible the phone is suffering from a serious hardware problem.

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