in ,

How to fix Samsung Galaxy S7 Edge black screen and won’t boot up after an update [Troubleshooting Guide]

The Samsung Galaxy series has been a success since it’s release along with some impressive features that could be useful for owners for everyday use. Even a great device like this still has it’s own issue like ‘black screen of death’ and fixing it is always different.

This issue is commonly occurs when turning on the device and it won’t respond or it won’t boot up. There are several factors that could affect this issue and it depends on how it started or how the owners use their device prior to the issue. To determine the culprit, you need to perform basic troubleshooting procedures that could narrow down the issue. We recommend to continue reading this post to learn more about the issue and what could be done if it will occur again in the future. All the procedure that we will give here are all simplified, to let anyone who are not tech savvy and that could be understand easily to avoid adding more problems to the device.

However, if you are trying to find a solution to a different issue, then visit our troubleshooting page for we have already addressed hundreds of problems with this device since it was released. Try to find issues that are similar with yours and use the solutions and troubleshooting guides we suggested. If they don’t work, however, contact us by filling up our Android problems questionnaire. Just give us information and we’ll help you find a solution.

Troubleshooting Samsung Galaxy S7 Edge black screen and won’t boot up

Problem: I have Galaxy S7 edge for awhile now and it’s been doing a nice job ever since until it’s acting weird. Just days ago, when I got home I received a notification that a new update is available to download and it could be important so I downloaded it. It takes awhile to download before my device suddenly went dead. I thought it was just run out of battery so I charged it and let it be for an hour. When I get back there’s no indication that the device was charging at all, and I tried turning it on but it doesn’t work. Is there still a fix to this?  I really need my device because I have tons of important files in it. Thanks!

Solution: There are several factors to consider if you experience ‘black screen of death’ in your device especially if it’s not turning on. It could be one of these factors: First, the update was corrupted or damage during the process. Second, the device might be misconfigured. Lastly, the device might have a hardware related issues. However, we need to make sure to narrow down the issue by performing troubleshooting procedures to determine the culprit.

Force Reboot your Device

This is the most basic of all the procedures but necessary. Some rare cases, to finish the updates it needs to restart the system manually if it doesn’t automatically restart the device. It can be done by press and holding the Power button until the device is turn on again.

Boot to Safe Mode

In case force rebooting your device didn’t work, then you can proceed and boot in Safe mode. Now, this mode is commonly used for diagnostics especially if the suspected culprit is third party app.  Sometimes, a black screen is caused by another app with similar purpose and caused confusion to the system. Basically, this mode will disable all third party apps installed and runs only the pre-installed or default apps. Here’s how:

  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.

Charge your Device

It could be the device that your device battery is totally depleted, we recommend to charge it for 2 to 3 hours. If there’s no indication that it’s charging, then you might have to check your charger it it’s working fine. You can try and use it to another device with the same port and see if it charges the other device. Check the cable if it’s broken, it might be stretch too much or dents on the pins. If possible, change the cable if you an extra it’s the best way to determine if the wire is broken.

Boot in Recovery Mode and Re-download updates

Since the issue was started during the download of the updates, then it might be corrupted or interrupted during the process. An incomplete download of update can cause boot up issue or the device won’t turn, similar to your issue. In this mode, you can choose several options as well as to try and download the updates again to complete the process. Here’s how to boot in recovery mode:

  1. Assuming your Samsung Galaxy S7 Edge is completely off.
  2. 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.
  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. 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.

Visit a Tech

If it doesn’t fix the issue, it could be a hardware related problem and only a tech can resolve it. They might have to change the screen if it’s the issue, just in case this device still has warranty you have to bring it and see if phone exchange is possible.

Galaxy S7 Edge screen is black but notification is still working

Problem: My Samsung Galaxy S7 Edge screen is black and i can’t see anything on screen but my notification is working. Every time someone calls me, I can’t answer because the screen is black and it won’t respond if I swipe or touch it. I can’t remember if what I did or installed in my phone because I only found out when I got home from work. This is phone is with me for few months only, I don’t think the quality of this is cheap since Samsung is a big company. Any help is much appreciated and thank you in advance.

Solution: Since you mentioned that the notification is working, then it might be a screen issue. However, we can’t jump to the conclusion right away because we need to make sure there are no other issues that triggers it. In most cases, the culprit is firmware related rather than screen issues.

The first thing that you should do is to turn off and on your device by pressing and holding the Power button for about 15 to 30 seconds. By doing this, your device will refresh the system and it might as well fix the black screen.

If nothing happened, then the next thing that you should do is to boot up your device in Recovery mode. If it happened that it will display some options or successfully entered this mode, we recommend that you have to ‘wipe cache partition’ to delete old temporary files. If this procedure didn’t work, then we recommend to master reset your device. Now, resetting your device will delete all the files stored in your device and restore it to manufacturer’s default. Make sure that you make backups. To wipe cache partition, follow these steps:

  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.

Now, here’s 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. 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.
  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. 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.
  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.

Connect with us

We are always open to your problems, questions and suggestions, so feel free to contact us by filling up this form. This is a free service we offer and we won’t charge you a penny for it. But please note that we receive hundreds of emails every day and it’s impossible for us to respond to every single one of them. But rest assured we read every message we receive. For those whom we’ve helped, please spread the word by sharing our posts to your friends or by simply liking our Facebook and Google+ page or follow us on Twitter.

Leave a Reply

Your email address will not be published. Required fields are marked *

How to Fix Galaxy S4 Black Screen Problem