How to fix Samsung Galaxy S7 Edge screen flickering issue, display goes black and white

The Samsung Galaxy S7 Edge is still one of the best smartphones in the market today with a huge screen sporting the company’s latest AMOLED technology. Its display is one of its selling points that’s why owners expect a lot from it. However, it seems that some users are currently bugged by a problem or two involving the phone’s screen and the most common issue is the flickering.

Screen flickering ranges from the simply turning on and off of the display to having lines appearing from time to time. Such problems can be caused by both liquid and physical damage, although there were also cases wherein some inconsistencies between the apps and the firmware resulted to such kind of problem.

Read on to learn more about this problem and know what to do if ever it happens to you. You may learn how to troubleshoot your device to determine what the cause or the problem is all about. It’s imperative you take a few minutes doing the steps below as it may save you from a lot of trouble.

To our readers who might be looking for a solution to a different problem, visit our troubleshooting page for we have already addressed hundreds of issues reported by our readers since we started supporting this phone. Odds are that there are already existing solutions to your concerns and all you gotta do is find them. So, try to look for similar issues in that page and use the solutions we suggested. If they don’t work or if you need further assistance, then fill up our Android issues questionnaire to contact us directly.

Galaxy S7 Edge screen started to flicker without apparent reason

Problem: I have a galaxy s7 edge and yesterday it started to flicker when i turn it on, when this happens in my phone you see like 3 stripe white lines and then it turns yellow, but the phone still works and i can even scroll through the apps,i do not know what i can do. Is there a fix to this?

Solution: If your Samsung Galaxy S7 Edge had not been dropped or has liquid damage then most likely your device has a firmware related issue. In fact, lots of reports we received from our readers saying that after the firmware update the device screen started to flicker without apparent reason. However, since we don’t really know what caused the issue the best thing that you should do is to isolate the problem by performing the basic troubleshooting procedures. Here are the steps that you need to follow:

Step 1: Restart your phone to Safe mode to determine if there were apps triggered it

By booting your phone in Safe mode your device will run all the pre-installed apps in the system and will disable all downloaded applications. So, while in this mode try to observe your device if the issue persists. If not, then most likely a third-party app  caused the problem you can uninstall it and see if the problem will occur again.

  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.

However, after the procedure and the screen still flickers then it could be a firmware or hardware-related issue. In that case, you can perform the next procedure for further troubleshooting.

Step 2: Delete the System cache of the phone for it might be corrupted

If the firmware had been updated the device won’t automatically delete all the system caches stored on your phone. Instead, the firmware will continue using it and that may be one of the factors that the problem occurs out of the blue. In this case, all you need to do is to delete all old caches to force the device to create newer caches that is compatible to the new system. Here’s how:

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

So, while in this mode and the issue remained, then you can jump to the next procedure.

Step 4: Perform Master reset to your Galaxy S7 Edge

Before giving a conclusion to the issue the last thing that you can do is to perform a reset on your device. Most of the time, by simply bringing back the device to its factory default may fixed different types of issues like what you have right now. But take note that all your files on your phone will be deleted once you will perform this procedure. So, make sure to backup everything.

  1. Backup your data.
  2. Remove your Google account.
  3. Disengage screen lock.
  4. Turn off your Samsung Galaxy S7 Edge.
  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.

  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.

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.

  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

 

But if all procedures may not worked on your phone then you can bring your Galaxy S7 Edge to the nearest shop in your area to be checked by the technician.

Galaxy S7 Edge screen went black and white like in Ultra Power Saving Mode

Problem: My girlfriend screen on her s7 edge went black and white and when i go in her setting it’s like her phone is in ultra power-saving mode but it’s not cant get into any of the system settings at all.

Solution: This issue is similar to the problem that I discussed above, there are two things that you need to look into that may have triggered the issue, either the device has a firmware or hardware-related issue. So, before jumping to the conclusion you need to isolate first the issue by performing from one step to the other. At this point, we recommend you to boot your phone to Safe mode to know if there are apps triggered the problem. This procedure will temporarily deactivate all downloaded applications in the system and if the issue is not happening while in this mode, then obviously one of the downloaded apps triggered it. You can uninstall the suspected app until the issue is fix.

However,if the problem remained while in Safe mode then most likely there’s something to do with the firmware or hardware of your Galaxy S7 Edge. In this case, deleting the system cache is the best thing to do to force your phone to create newer files in the system. To do so, you can follow the procedure above.

At this point, after booting in Safe mode and deleting the system caches and issue remained, then you can perform the more complicated procedure by resetting the device. But before doing so try to backup all your files because it will be deleted once the procedure is performed. On the other hand, after the master reset and still the screen is flickering then you don’t have a choice but to bring it to the nearest shop because it might be a hardware issue.

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14 Replies to “How to fix Samsung Galaxy S7 Edge screen flickering issue, display goes black and white”

  1. I have a similar issue on my S7(Not an Edge) in that my screen keeps going black. This only seems to be happening on the YouTube app so I would usually suspect the issue is perhaps a bug in their latest patch however this has happened previously a few months ago.

    So I am watching a video and my screen will turn off; I have a passcode on my phone so I know the phone itself is not locked when this happens but I have to press the lock button to get the screen to light up again. The screen will light up, not on the lock screen but still fullscreen on the YouTube video, paused (proving that my phone itself isn’t actually locking). As soon as I tap to unpause it the screen goes black again and it takes a few times fighting to light up the screen again before it will finally stay on and let me watch the video. It seems to initiate when I move the phone into a certain angle, as though there is a mode set to turn off when the phone screen is faced down (perhaps to automatically save battery when the phone is set down on a table for example). I have checked my display settings in the hope of finding an answer but to no prevail. Anyone know if my phone is infected with something or is this a Samsung or YouTube issue?

  2. Ive followed the steps but its still black and white and even worst it barely can turn on (looks like it can’t turn on) and when it is able to produce light the color is so dark

  3. My Samsung S7 Edge’s screen is flickering and flashing. Screen will turn black after a few minutes. I’m lucky I can make it go on camera mode. Can unlock phone and play music cause i can see the icon but its flickering 100% with the top quarter of the screen ultra bright and when i try go in to messages and messenger or even the call screen my phone goes a greenish then black color. I was charging my phone and the charger blew up while my phone was connected that’s obviously the problem just thought i would chuck it out there and see if you would suggest to just get rid of the phone?

  4. i dropped my samsung galaxy s7 and the screen started flickering is it fixable . the glass didn’t break.

  5. I was laying in bed watching a video and my screen went black on the left half, white on the right. I clicked the power button to shut the screen off and clicked it again to bring it back. The screen is now black and the top right 1/4 of the screen flickers white once then remains black. I can still unlock my phone and scroll through apps, but the screen is always black.

  6. My screen started to flicker after i dropped it. The screen sometimes go back to complete normal but only last a few minutes before it flickers again

  7. My s7edge as just started to flicker like crazy only after I updated my phone I done all of the resets and everything else I sent it bk to Samsung and they said the fone as been dropped which I now isn’t true and they want £206 to repair it

  8. Thanks.i had a question about my s7 edge,it had a phsical damaged and its show those flickering colour

  9. my s7 edge is flickering in the lower bottom due to physical screen damage, what are the available solutions.

    thank you

  10. The exact same thing has been happening to me, but I have a Samsung J3. Makes me thing that its a problem with an update and not with the device.

  11. I have the same issue as Robert. The screen is bright white with green bars. The brightness adjustment worked but not anymore I can’t see anything. If I open an app the screen just goes black (I know I’m opening an app as I unlocked with the fingerprint )

  12. I have the same issue. I tried all above steps but same issue. This happened suddenly without any drop or any thing that may harm the phone.

    I expect that latest update caused this issue to many people. I am stuck now as my warranty expired last month.

    Any more ideas please

  13. My Samsung S7 Edge’s screen is flickering and flashing. Screen will turn black. I’m lucky if I can make it go on camera mode. Sometimes it’ll allow me to put in my password and open my phone. I have adjusted my phone to the brightest. So it sorta works. But if I lower the brightness, the flickering begins and the super bright light. I was simply using navigation. And when I looked at it, it was super bright and flickering. I quickly shut it down. But when I tried to turn it on again. It’ll flicker. Or flash me the lock screen, or simply stay black. What should I do?

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