Galaxy S7 screen won’t open, can’t enter password, won’t turn off, other screen issues

Smartphone screens are usually the first one to go if a phone gets physically impacted or damaged. And with millions of smartphone users around the world, it’s no wonder that a of people who asks us for support have broken displays. Although this post covers specific screen problems for the #GalaxyS7, our advice and solutions can still be applied to other Samsung S and Note models. Hopefully, a lot of people will be enlightened by this article.

By the way, this post won’t give you a detailed step-by-step guide on how to fix a physically broken display. Our blog does not do that. We leave the actual hardware diagnostics and troubleshooting to technicians who can access the device in person. Hardware troubleshooting is complicated and we discourage amateurs and novices from fixing their own phones. In a lot of cases, do-it-yourself repairs do more harm than good. If you’re looking for a guide on how to replace your screen, or how to arrive at the diagnosis that you, indeed, have a screen problem, go find other websites.

If you are looking for solutions to your own #Android issue, you can contact us by using the link provided at the bottom of this page.

When describing your issue, please be as detailed as possible so we can easily pinpoint a relevant solution. If you can, kindly include the exact error messages you are getting to give us an idea where to start. If you have already tried some troubleshooting steps before emailing us, make sure to mention them so we can skip them in our answers.

Below are specific topics we’re bringing for you today:

Problem 1: Galaxy S7 screen won’t open, can’t enter password, won’t turn off

Samsung S7 edge screen can not open up after restart needs to type password, but the keyboard will not show up. It seems the box to enter password is lower than the normal location on the screen. Can not turn phone off. Battery is going down although connected to power. Phone is hot. — Avishai Chelouche

Solution: Hi Avishai. Has the phone been dropped, exposed to water/moisture or heat? If it has suffered any of these, forget about fixing the issue in your level. Instead, just bring the phone to Samsung or to any repair shop that can handle wet electronics to see if the phone can still be repaired.

If, on the other hand, the problem just happened out of the blue and you did nothing different that might lead to the problem (this is important), there may be an unknown software glitch behind the trouble. You must try three important troubleshooting steps to try and fix the problem.

Wipe the cache partition

This is the first troubleshooting step best applied in this case since it’s possible that your phone may be using a corrupted system cache, stored in the cache partition. System cache usually becomes corrupted following an update, or by a poorly coded app or firmware. Since there’s no direct way to determine the integrity of this cache, you want to simply refresh it by wiping the cache partition. Your phone will eventually build it up from scratch afterwards. Here’s how to wipe the cache partition:

  1. Turn off your Samsung Galaxy S7.
  2. Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  3. When the Samsung Galaxy S7 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.

Verify if third party app is the cause

Should cache partition wipe won’t fix the problem, the next best thing to do is to see how the phone works when it’s on safe mode. This is because there’s a chance that one of the downloaded apps may be causing the problem. Keep in mind that not all apps are built with the same expertise and resources. Some may be excellent but a whole lot more are poorly coded by inexperienced or resources-deprived developers. It’s no wonder a lot of Android issues are due to apps. To see if an app is responsible for the problem you’re having, you can restart your S7 to safe mode. While in this mode, all third party apps will be blocked, thus you can expect the phone to boot up normally. If that happens, that’s a confirmation that one of the apps is to blame. Here’s how to restart your S7 to safe mode:

  1. Turn your Galaxy S7 off.
  2. Press and hold the Power button.
  3. Once the ‘Samsung Galaxy S7’ logo appears, release the Power key and immediately press and hold the Volume Down button.
  4. Continue holding the button until the phone finishes rebooting.
  5. Once you see the text “Safe mode” at the bottom left corner of the screen, release the Volume Down button.

Do a factory reset

If all else fails, the most drastic solution that you can attempt is factory reset. This procedure will return all software settings to their known working state — factory state. In this condition, the software has been validated to run properly so you can’t expect any issue, particularly the one you’re having right now. Remember, we assume that your phone has not physically damaged or exposed to water, so it will almost certainly work fine afterwards. If you chose not to tell us about the phone being dropped or exposed to water in your description, then,again you must know that we can’t help you. All hardware problems must be addressed by Samsung, or an independent technician who can physically check the device.

Now, here are the steps on how to factory reset your S7:

  1. Turn off your Samsung Galaxy S7.
  2. Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  3. When the Samsung Galaxy S7 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.

Problem 2: Galaxy S7 edge screen keeps flickering after it was accidentally dropped

Hi. My step daughter dropped her S7 edge. It was okay for around 10 hours. Now it flickers a white screen occasionally. And it still works but does that. Any idea? I’ve sent the short clip on your page . Thanks. — Goldieraymond

Solution: Hi Goldieraymond. The combination of accidental drop and flickering screen issue is a clear indication of a broken screen. To confirm that there’s no operating system/software issue behind it, try to boot the phone to any of these modes:

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 logo 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.

Download Mode:

  1. Turn off the phone.
  2. Press and then hold the Home and Volume DOWN keys, then press and hold the Power key.
  3. When the Samsung Galaxy logo shows on the screen, release the Power key but continue holding the Home and Volume DOWN keys.
  4. Wait until the Download screen appears.

If the screen continues to flicker when your phone is on any of these modes, that means that there’s no software issue causing it; it must only be bad hardware. You should have it repaired.

Problem 3: Galaxy S7 screen split vertically and showing static lines

My phone screen will often split vertically down the center, either frozen, or with “static” on the right side. This is a new occurrence as of yesterday. I’ve had this phone for nearly a year. It has not been dropped or gotten wet. In fact, it lives mostly in a life-proof case.

I have found that the phone gets hot, but since it’s cooled down, it still does it. I’ve rebooted it twice in safe mode, and it seems to semi-solve the problem. When I rebooted, it would do the half-freeze thing, and even entered Safe Mode while in the half-static screen mode. However, after trying to capture a screenshot, it started working correctly after the screen did the animation it does for a screenshot. Has there been a fix for this? I’ve seen some people press the top of the screen hard where apparently the connector for the screen is located inside the phone. I’ve tried that, but can’t figure out of it’s actually doing anything. I really don’t want to buy a new phone, but it seem like this one has gone belly up. — Chris

Solution: Hi Chris. Below are the basic steps that you can do initially to troubleshoot the screen:

  1. Make sure that your screen isn’t cracked, chipped, or damaged.
  2. If you have a case or screen protector, take it off.
  3. If you’re wearing gloves, take them off.
  4. If you’ve put any stickers over the screen or sensors, peel them off.
  5. Make sure that your screen is clean.

Should nothing of them help, make sure that you follow our suggestions for Avishai and Goldieraymond above.

 


Engage with us

If you are one of the users who encounters a problem with your device, let us know. We offer solutions for Android-related problems for free so if you have an issue with your Android device, simply fill in the short questionnaire in this link and we will try to publish our answers in the next posts. We cannot guarantee a quick response so if your issue is time sensitive, please find another way to resolve your problem.

If you find this post helpful, please help us by spreading the word to your friends. TheDroidGuy has social network presence as well so you may want to interact with our community in our Facebook and Google+ pages.