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How to Fix Your Samsung Galaxy S7 Edge that won’t turn on properly and has always on display problem, other screen issues [Troubleshooting Guide]

Screen issues are seem common to #Samsung Galaxy S7 Edge (#S7Edge), although many owners mistake it for power-related problems. For instance, blank screen are often thought being a battery issue or a more complex hardware problem. We’ve received quite a lot of complaints from our readers before citing the same problem but in the end they found out that their devices were still powered on because they could hear the notification sound plays when messages arrive.

In this post, I will tackle a few screen issues that you, if you own a Galaxy S7 Edge device, may encounter without warning. You better continue reading because the issues I cited here seem to happen every now and then, although many reported that they’re minor problems and can be fixed by doing some minor troubleshooting procedures.

For those who have other issues, make sure you visit our Galaxy S7 Edge troubleshooting page for we have already addressed a lot of issues with this device since it was released earlier this year. We may have already provided solutions to your problems so try to find issues that are similar with yours and use the solutions we suggested. If they don’t work for you or if you need more help, feel free to contact us by completing our Android issues questionnaire.

Galaxy S7 Edge won’t turn on after screen started to flicker

Problem: I bought an unlocked Samsung galaxy s7 edge from best buy in the very end of May of 2016. Now, it won’t turn on properly. About a week ago, my s7 edge didn’t turn on, and instead it flashed a white, sometimes green screen. After a few tries, it would turn on, however the screen would flicker and shake a lot. I have tried to reboot it, and restart it, however it does nothing. It’s been a week, and now the phone won’t even turn on after a few tries.

Troubleshooting: Hi! Honestly, we’ve received several emails from our readers that has related issue. Most of them were experiencing a hardware issue because of their device’s screen flickering problems and the only resolution is to change the display panel. Their devices are responsive, it will turn on normally but it has no display and sometimes it flickers and turns white or green, it is related to what your device’s. But, there are instances as well that the issue is caused by a system crash, so you can set aside the hardware issue for now. We will recommend several troubleshooting steps to determine whether it is a software or hardware issues. Below are the steps to follow:

Step 1: Run the device in Safe Mode

If this is a software issue you can try booting your device in Safe mode. This mode is not a solution of the issue but to make sure if your device is still responding and can boot up smoothly. It will disable all the third-party apps running only the pre-installed or default app. Here are the steps how to boot in Safe mode:

  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, you can try using your device and uninstall the suspected third-party apps or clear the individual cache file and data of each apps like your games, facebook, etc.. Try to remember the app that you are using before the issue occurs.

How to clear cache and data, follow these steps: Go to Apps > Settings > Applications > Applications Manager > Select the app you want to clear cache and data > Clear cache > Clear data. Then, go back to the main screen and you can restart your device and boot up normally.

Step 2: Try booting the device in recovery mode

There’s an instance that the device is having a system crash, it occurs after a software updates or some of the system files are corrupted or damaged during the update process. If so, you can try clearing the system cache files, these are temporary files to help your device run smoothly like opening certain applications more faster. But, if one of these files are corrupted or damaged then it might cause some issues, like the screen flickering at random or auto shut off the device. Anyhow, here are the steps how to boot up in recovery mode:

  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 device done the process, you will then observe carefully if the device still has issues. If so, then you can try and proceed to the next step below.

Step 3: Master Reset your device to restore it to defaults.

If the issue still occurs after clearing the system cache, it could be a serious issue that you have to master your device. This is the last resort that you  have to do before bringing the device to a tech because they will still ask your permission to master reset your device if you haven’t done it yet. But, before you proceed you have to backup all the important files that was stored in your device and save to your SD card or external storage device. In this procedure, it will delete all the files and data in your device and restore it back to defaults, the same setting the first time you got your device.

Mostly, this is the solution of this issue but not guaranteed that you have the same issue with the others. So, here are the steps how to master reset your device:

  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 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.

If the problem still remained after the master reset and screen still flickering, it have to be a hardware issue and your device’s screen is needed to be replaced. You might have the same issue with our readers, just visit the nearest Samsung service center and bring the warranty with you if it’s still active. They might come up with a resolution and fix the issue.

Galaxy S7 Edge screen is always on and its gray

Problem: My always on display screen is gray rather than black and white what can I do to fix it.

Troubleshooting: First off! Based on your statement, your device is not experiencing any issues but only in Always On Display feature.

Is it grey all the time when turn on the device? Have you tried changing it to other display rather than black and white? If it’s a no, then you should try to changing it to your liking. This feature is quite nice, you can choose what would appear if the screen is on sleep like the analog/digital clock, or an image. There are default colors also that you can choose, your device might be on  default  grey color. Here are the steps how to change your modify your Always on display feature:

  1. Go to Apps
  2. Tap Settings
  3. Tap Display
  4. Tap Always On Display

Note: Once inside the Always on display menu screen, you can either toggle it on/off

  1. Tap Content To Show
  2. Select from Calendar, Clock or image. It depends on your liking what do you like to appear
  3. To confirm selection, just tap the certain object
  4. Go back to the main screen, observe if the Always on display was changed

Alternatively,

  1. Swipe down the notification panel
  2. Navigate to Always on display by swiping up or down
  3. Then tap Always On Display

Anyway, you can try clearing the system cache partition of your device. There might be some glitch in the system, just to make sure, run the device in recovery mode. You can refer the steps above on how to boot in recovery and follow the next step if necessary.

Hopefully, we were able to help you with your issue.

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