Galaxy S6 screen stopped working, responding very slowly, won’t turn on, other screen issues

Screen problems are usually the result of hardware damage to the device so we receive significantly lower questions about them. However, hardware issues are not fixed by software solutions that we usually offer so most of the time, screen problems end up with repair. Below are some of the screen problems we cover today.

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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 S6 screen stopped working, responding very slowly, won’t turn on

I am using Samsung S6 edge and all of a sudden its screen stopped working. First it was responding very slowly then after some time stopped working at all. I have tried removing cache, reboot, factory reset etc. But no luck so far. Kindly advise what should I’Il do. Thanks in advance. — Preet.priya

Solution: Hi Preet.priya. We don’t think this is a problem that can be fixed on your end. Slow performance issue or lag caused by a bad cache, app, or software can be fixed easily with a restart. That even a factory reset did not make any difference is therefore a strong indication that there may be a hardware problem causing it. We don’t know the full history of your device so we can’t say with absolute certainty. We strongly recommend though that you let a professional check the hardware side of things so you can be advised on what can be done. Depending on the cause, the phone may or may not be fixed. If, for example, your phone was physically damaged after it got dropped or exposed to water, there’s very high likelihood that malfunctioning hardware may be to blame. Unnecessary shock and/or moisture in the motherboard can result to all sorts of problems ranging from minor hardware glitches to more permanent ones such as total failure to boot up. To get to the bottom of the issue, you must let a technician check the phone.

Problem 2: Galaxy S6 edge plus are white and grey, won’t turn on

Hi. PLEASE can you help me!! For no apparent reason my S6 edge plus screen has gone all white and grey (like a hazy wavy lines) and won’t budge even if I try and do a reset or recharge the battery. All my holiday and precious recent photos are on it and haven’t backed up elsewhere. I’m desperate to retrieve my photos if nothing else. I can’t even access any apps or settings. the white/grey screen won’t budge . Really hope you have a solution as fear a technician will wipe all my photos off before fixing it. Thank you in advance. I can email a picture of the screen if helps. — Wendy

Solution: Hi Wendy. There are two ways to know what’s going on with the screen in your phone. One is with the help of the device’s history, and the other via a hands-on check of the hardware itself. Like what we tell Preet.priya above, there’s no way for us to identify what the problem is unless a user like you tells us what the possible reasons are that may have led to the problem. Telling us that the screen is no longer working is incomplete and at best, very generic. You should have provided more details of the problem including the ones that happened directly before noticing it.

Anyway, as regards your main concern on whether or not there’s a way to recover your files, the answer is no. A good working screen is necessary to grant permission to a second device (like a computer), to access the internal storage device. Even if the phone still shows signs that it’s powered on (such as LED light, vibration, or sound), the screen must be opened in order to unlock Android and allow files to be transferred. We suggest that you bring the phone to an independent service center so the screen can be replaced.

Problem 3: Galaxy S6 edge time on edge screen not working

I have a Samsung Galaxy S6 edge. At night when the edge screen is on showing time and alarms etc., the time stops updating. It never stops at the same time each night. So the display might say 12.36. But the actual time is 3.56am. It’s very frustrating because I use it as  a clock at night. It use to work fine, then it just changed about 1 year ago. — Tueadaymorningcraft

Solution: Hi Tueadaymorningcraft. This can be caused by an operating system bug so we suggest that you try to wipe the cache partition first. This will ensure that the system cache works normally again. Sometimes, app and update installations can corrupt the system cache so refreshing it once every months may help. Here’s how it’s done:

  1. Turn off the device.
  2. Press and hold the following three buttons at the same time: Volume Up key, Home key, and Power key.
  3. When the phone vibrates, release the Power key but continue to press and hold the Volume Up key and the Home key.
  4. When the Android System Recovery screen appears, release the Volume Up and Home keys.
  5. Press the Volume Down key to highlight ‘wipe cache partition.’
  6. Press the Power key to select.
  7. When the wipe cache partition is complete, ‘Reboot system now’ is highlighted.
  8. Press the Power key to restart the device.

Once you’ve cleared the cache partition, the next step is to ensure that Android and all your apps are updated. Sometimes, updates can fix known bugs and issue so make sure not to skip it.

Finally, if the issue remains after wiping the cache and re-installing OS and app updates, make sure that you factory reset your phone. This will address any possible OS bug that may have developed over time. To factory reset your device, follow the steps below:

  1. Turn off your Samsung Galaxy S6 Edge.
  2. Press and hold the Volume Up, Home and Power keys together.
  3. When the device powers on and displays ‘Power on logo’, release all keys and the Android icon will appear on the screen.
  4. Wait until the Android Recovery Screen appears after about 30 seconds.
  5. Using the Volume Down key, highlight the option, ‘wipe data/factory reset’ and press the Power key to select it.
  6. Press the Vol Down button again until the option ‘Yes — delete all user data’ is highlighted and then press the Power key to select it.
  7. After the reset is complete, highlight ‘Reboot system now’ and hit the Power key to restart the phone.

Make sure that create a backup of your personal data (photos, videos, contacts, SMS/MMS, etc.) before doing a factory reset.

Problem 4: Galaxy S6 bottom keys flicker when headset is inserted

Whenever i plug in/take out my headphones or grab my phone and touch the headphone jack (with the headphone connected) the bottom two “buttons” start blinking rapidly for an minutes on end. This prevents use of the phone because the phone thinks something is touching the screen and therefore the touchscreen functionality is rendered useless (i.e. attempting to sign in to the phone with a design passcode). I’ve tried to remove dust/particles from the headphone jack but that has not worked. Thanks! — Mike C

Solution: Hi Mike. We’ve observed this erratic behavior in some non-Samsung phones before after a failed repair attempt. If you recently had your phone repaired, there may be a motherboard malfunction causing the issue. If the phone was never sent in for repair, an issue like this can be caused by water damage or presence of moisture in the affected parts. Sometimes, all sorts of issues can occur after an accidental drop as well so if any of the these things happened, you may be looking at a possible hardware problem.

If you haven’t yet, make sure to do a factory reset first. This will ensure that there’s no software issue causing it. If the same behavior happens after a factory reset, send the phone in.

Problem 5: Galaxy S6 edge screen showing persistent watermark

I own a Samsung Galaxy S6 Edge plus The day i bought the phone it has A Water mark in the middle of the screen written “Galaxy S6 edge+.” It’s always there in the middle of the screen and no matter what i do it stays there. please suggest a fix. — Sonalbaradia10

Solution: Hi Sonalbaradia10. We don’t know what exactly you mean but if the said watermark is persistent even if the phone is restarted to, say, Recovery Mode, that’s not normal. Bring it to a Samsung service center or store and let them check if it’s a feature from them (though we haven’t heard of it) or not.

For reference, these are the steps on how to restart the phone in different boot modes:

Boot in Recovery mode:

  1. Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  2. When the Samsung Galaxy logo shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  3. When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
  4. You can either wipe the cache partition or do a factory reset when in this mode.

Boot in Download Mode:

  1. Press and then hold the Home and Volume DOWN keys, then press and hold the Power key.
  2. When the Samsung Galaxy logo shows on the screen, release the Power key but continue holding the Home and Volume DOWN keys.
  3. Wait until the Download screen appears.
  4. If you can boot the phone in download mode but not in other modes, that means that your only way out may be to flash a stock or custom firmware.
  5. Use Google to look for a guide on how to do it.

Boot in safe mode:

  1. Press and hold the Power button.
  2. Once the Samsung Galaxy logo appears, release the Power key and immediately press and hold the Volume Down button.
  3. Continue holding the button until the phone finishes rebooting.
  4. Once you see the text “Safe mode” at the bottom left corner of the screen, release the Volume Down button.
  5. The only difference of safe mode from normal mode is that the former prevents third party apps from running. If you can boot the phone in safe mode but not in normal mode, uninstall all apps until the issue (that prevents you from booting normally) is eliminated.


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