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How to fix Samsung Galaxy S7 Edge screen that went black, other system related issues

There is a thin line between a black screen issue and a serious hardware problem that’s why it’s imperative you troubleshoot your device–in this case it’s the #Samsung Galaxy S7 Edge (#S7Edge)–to determine what the real problem is and find out a way to fix it. There are problems that need to be addressed immediately however minor they are but there are also issues that you can afford not to address immediately despite being so annoying.

galaxy-s7-edge-black-screen-of-death

I have addressed a few screen and possibly firmware related problems in this post. If you’ve recently encountered similar problems, I urge you to continue reading to see if the solutions or troubleshooting guides I published here are helpful enough.

If you have other concerns, however, make sure you visit our S7 Edge troubleshooting page for we have already addressed hundreds of problems with this phone since it was released. Try to find similar problems and use the solutions we suggested. If they don’t work or if you need further assistance, you can always contact us by completing our Android issues questionnaire. But please give us as much information as possible so that we can help you better.

Samsung Galaxy S7 Edge screen turned black which accompanied with freezing and lagging

Problem: Hi! I currently have an S7 Edge and ever since I have got the phone which was two months ago it has been lagging and freezing. It messes up so bad that the screen becomes black and i cannot use my phone. I took the phone up to the at&t store and let the technicians try to fix it. They plug the phone up to the device and was able to tell me it was a software issue and it is definitely lagging so she reset my phone and flash it. It work great for a day or 2 but  then the following day the same problem a black screen I definitely need to see if I can get another phone because I am really getting tired of this one.

Solution: One of the reasons your phone is freezing and lagging is because you might have downloaded a lot of apps on your device. There are two types of apps present on your phone; pre-installed and downloaded or third-party apps. If the issue happened after downloading an app, then a third-party app might be responsible that this happens. For further troubleshooting, follow the procedures below.

Step 1: Boot your Phone on Safe mode

Booting your phone on Safe mode will help you determine what really triggered the issue. In this procedure you’re temporarily disabling all downloaded apps and only letting the pre-installed apps run during boot up. To boot on Safe mode, do these steps.

  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.

While in this mode and the issue remained on your handset proceed to the next procedure.

Step 2: Wipe the Cache Partition of your Galaxy S7 Edge

More often, freezing and lagging issues happen because of corrupted caches. In this case, you need to delete them so that the system will create new ones. Wiping the cache partition won’t harm any of the files stored on your phone like phone numbers, photos and any other files. Here’s how you do it:

  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 3: Perform Master Reset on Your Galaxy S7 Edge

After booting the phone in Safe mode and deleting the system cache and the issue still exists, then doing a master reset is your last resort. This method is more of a hassle because all files will be deleted like downloaded music, phone numbers, videos, photos, etc. So, before performing this procedure make sure to backup all of them as they will be erased. To master reset the device, do these steps.

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

Step 4: Call Technical Support

After the master reset and the issue remained, then calling a tech support is the best thing to do. Performing their own troubleshooting might help fix the issue of your phone. If your provider can’t also fix the problem, at least they can give you some kind of compromise that only they could offer.

Galaxy S7 Edge screen becomes unresponsive but there is still display

Problem: For some the reason, the touchscreen on my Galaxy S7 Edge got disabled. I mean the phone will no longer obey my touches as in nothing works if I touch the screen. I’ve taken care of this device and I’m 100% sure it wasn’t dropped nor have I submerged it in water. I’m quite taken aback by this problem as my expectations were high. So now, I don’t really expect much anymore but I just want to salvage it. Can you please help me if you can. Thanks.

Troubleshooting: Apparently, we don’t know as this point what the problem really is so we need to troubleshoot the device. This is what you’re going to do:

  1. Boot your phone in safe mode – this will give you an overview as to whether the problem is caused by third-party apps or pre-installed ones.
  2. Uninstalled suspected apps – if the problem got fixed in safe mode, it means the culprit is a third-party app. Find the culprit and uninstall it.
  3. Force reboot your device – do this if your phone freezes, lags or crashes from time to time as there is always a possibility that it’s a minor firmware glitch that causes the screen to become unresponsive.
  4. Deleted the System Cache – follow the steps above to wipe the cache partition because this problem might have been due to a corrupt system cache.
  5. Factory reset your phone – if all else fails, reset your phone to know if the problem can be fixed by bringing the phone back to its default settings.
  6. Send the phone in for repair – if the reset cannot fix the problem, then seek help from a technician.

Galaxy S7 Edge screen is completely black, phone won’t turn back on

Problem: I badly need your help guys. I have the S7 Edge phone that I bought a couple of months ago. I haven’t encountered any problem with it until recently when it turned off on its own leaving the screen completely black and won’t turn back on. I just don’t know what to do that’s why I’m reaching out to you guys. Please help me.

Troubleshooting: I understand your phone just turned off on its own and now the screen is completely black and the device itself won’t turn on. The problem might be just a minor firmware or app issue or it could be a more serious system or hardware problem. This is what you’re going to do:

  1. Try to call your phone number from another phone – this will give you an idea whether the phone is still powered on and only the screen is turned off.
  2. Force reboot your S7 Edge – just in case the phone still rings even if the screen is off, you must force restart your device to boot it up.
  3. Inspect the device for physical damage – if the phone got dropped and affected its performance, then it must have left some kind of dent or scratch. You might even find some cracks on the screen.
  4. Check for liquid damage – another reason why the screen turns off without apparent reason is due to liquid damage. Fortunately, the S7 Edge has a liquid damage indicator you can check to verify if the problem is due to liquid damage. Just remove the SIM card tray and look into the slot to find the sticker. If it turned red, purple or pink, then the phone suffered liquid damage. You must send the phone for checkup and repair.
  5. Try booting the phone in safe mode – in a bid to find out if the phone is still capable of booting up, try running the phone in safe mode. If the phone boots up successfully, then at least, we know the hardware is fine and we might be able to fix the problem.
  6. Reset your phone – boot your phone in recovery mode and reset your device if successful, otherwise, just send it in for checkup and repair.

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