Blank and unresponsive screen are always considered as among the common display-related issues. We have received a lot of complaints from our readers who own #Samsung Galaxy S7 Edge (#S7Edge) smartphones and among them is this. We’ve looked into this problem closely as it has already been happening to previous Galaxy models and while it fall into screen issues, it’s more of a firmware-related problem.
In this post, I have tackled two of the problems sent by our readers. The first issue is about a unit that, according the owner, is still powered on and can still receive calls but the screen is blank and won’t respond. The second is a similar issue but the only indication the phone is powered on is the LED indicator. Read on to understand more about these problems and to learn how to troubleshoot your phone if they occur.
As to our readers who have other concerns with their devices, make sure you visit our S7 Edge troubleshooting page for we have already addressed a lot of issues with this phone since its release. Odds are that there are already existing solutions on our website. So, try to browse through the page to find similar problems. If you need further assistance, however, you can always contact us by completing our Android issues questionnaire.
Galaxy S7 Edge is powered up, receives calls but screen is black
Problem: I hope you guys have encountered this kind of problem because it puzzles me. I have a Galaxy S7 Edge and it was working fine since the day I bought it until recently. Actually I still continue to receive calls from friends but the thing is the screen is blank or black, the phone rings though and notifications play. I have tried rebooting it and I can hear the phone start up but then the screen remains blank. Have you guys heard of this problem before? Please help me.
Troubleshooting: It is possible that only the display has an issue but the phone may still be functioning properly, which I think is the case with your device. There are several possibilities that we need to rule out in order to isolate the problem and to come with a solution or a troubleshooting procedure that may help you fix the issue. With all that being said, I suggest you follow out step-by-step troubleshooting procedure before and see if you can have it fixed:
Step 1: Verify it’s not a simple system crash issue
I understand your phone is still powered on but the screen is blank and I know you already did countless reboots but I suggest you still do this. The Forced Reboot procedure will fix minor firmware and hardware issues and I think it’s the latter you’re experiencing. For this step, just press and hold the Volume Down and Power keys together for 10 seconds. If the phone reboots and turns on its screen, then problem solved. However, if it refuses to turn the screen on, then proceed with the next step.
Step 2: Try restarting your phone in safe mode
There is a possibility that this problem is caused by a third-party app or service and so to rule it out, you have to restart your phone in safe mode.
- Press and hold the Power key.
- 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.
- Continue holding the Volume Down button until the device finishes rebooting.
- You may release it when you can see ‘Safe mode’ in the bottom left corner of the screen.
You’re not actually going to do something in this state, you just have to find out if the phone can still boot up in safe mode because if it can, then problem solved. Just reboot your device normally and that should do it.
Step 3: Attempt to boot up your device into recovery mode and wipe cache partition
If booting up in safe mode didn’t work the attempt to restart your phone into the Recovery Mode and if successful, try wiping the cache partition. In recovery mode, the Android interface won’t be loaded yet you will have access to procedures that might fix the problem.
- Turn off the phone.
- Press and then hold the Home and Volume UP keys, then press and hold the Power key.
- When the Samsung Galaxy S7 Edge shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
- When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
- Using the Volume Down key, navigate through the options and highlight ‘wipe cache partition.’
- Once highlighted, you may press the Power key to select it.
- Now highlight the option ‘Yes’ using the Volume Down key and press the Power button to select it.
- Wait until your phone is finished wiping the cache partition. Once completed, highlight ‘Reboot system now’ and press the Power key.
- The phone will now reboot longer than usual.
If the phone won’t boot up in recovery mode or if the problem persists even after wiping the cache partition, then you should have it checked.
Problem: Last night the screen of my Galaxy S7 Edge was blinking, and had purple lines through it. It worked for a few hours and I went to bed. When I woke up this morning, the screen is black, the blue light keeps blinking. I can hear messages and phone calls but I cannot see them. The bluetooth hooks up to my car and I can play music and read text messages. I have tried the soft reset and it doesn’t work. Do you have any other solutions?
Solution: This issue is common not just with the Galaxy S7 Edge but with other smartphones as well and the reason that the blue light is blinking on your device it is because all other components are fine except for the display. There is also a possibility that the system crashed that’s why the screen turned black leaving the phone unresponsive. Troubleshooting the firmware must be the first thing to do when it comes to this issue. So, follow these steps and see if you can have the device work again.
Step 1: Perform Forced Reboot on your Galaxy S7 Edge
Since Galaxy S7 Edge’s battery is not removable, it’s impossible to do the battery pull procedure like any other devices with removable batteries. However, you can simulated it by doing the forced reboot procedure. Minor issues or system glitches might be fixed through this procedure. To do this, just press the Volume Down button and the Power key together for 10 seconds. If the phone has enough battery and provided the problem is a minor firmware issue, it should reboot normally and hopefully the problem will be fixed. If not, then the next step might.
Step 2: Perform Master reset on your Phone
After performing the procedure above but the problem remained, then the next thing that you should do is to perform factory reset on your device. System glitches and other minor issues might be fixed after doing this procedure. I suggest, however, that before performing the reset make sure to backup all your files because all of them will be deleted.
- Backup your data.
- Remove your Google account.
- Disengage screen lock.
- Turn off your Samsung Galaxy S7.
- 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.
- When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
- 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.
- Using the Volume Down key, navigate through the options and highlight ‘wipe data / factory reset.’
- Once highlighted, you may press the Power key to select it.
- Now highlight the option ‘Yes — delete all user data’ using the Volume Down key and press the Power button to select it.
- Wait until your phone is finished doing the Master Reset. Once completed, highlight ‘Reboot system now’ and press the Power key. The phone will now reboot longer than usual.
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