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S9 screen won’t turn on

What to do if Galaxy S9 Plus screen has vertical lines, black screen of death issue, and won’t turn on

Oftentimes, a lot of Android owners wish there’s an easy way to fix the screen without spending for parts or phone replacement but the truth is, there’s none. In this #GalaxyS9 troubleshooting episode, we show you what you can do for two cases where the screen can fail. The second case is more interesting though as the owner tried an unofficial (and highly not recommended) workaround to make the screen work again.

Before we proceed, we want to remind you that 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.

Problem #1: Galaxy S9 Plus screen has vertical lines, won’t turn on, black screen of death

The night I bought my Galaxy S9 Plus, thin vertical green lines appeared on the full length of right side of screen. I did a Backup of data on the Galaxy,  then I did a Factory Reset. As I was configuring it, I may have hit some key in error, & I have a BSoD — Black Screen of Death. It still has WiFi on. I can’t turn it on. When I send myself an email on Dell computer, the small blue light in top left corner flickers. When I telephone the Galaxy’s Tel #, the small green light in top left corner flickers. it seems I’m able to charge it. It vibrates occasionally. a woman’s voice comes on periodically informing that it has been turned on, & various other info – but it has not turned on.

I’ve tried your recommendations of pressing Power button simultaneously w/ Volume Down button, unconnected & connected to electricity — no result. Do you think this is a Screen issue, Power issue, Operating system issue, software issue, or other? Thanks a lot. — Steve Breslin

Solution: Hi Steve. We don’t exactly get what you mean by “configuring” but if you’re referring to the setup you need to do right after a factory reset, we don’t think there’s anything there that you can misconfigure to turn off the screen, like what is happening to your S9 right now. Setting up an S9 right after a factory reset is straightforward and won’t result to any issue, much more damage the screen or tweak the software in order to prevent the screen from working normally. The more likely reason is hardware malfunction.

Screens don’t usually just turn black on their own. Because the touchscreen is the only way to bridge the user and the software, Android devices are built so that display continues to work even if there’s an issue with the operating system. Since you’ve already tried a factory reset and, in fact, the issue occured right after doing it, only hardware malfunction can be to blame. The thin, vertical green line may be related to this issue and it may be one of the symptoms that your S9’s display is defective. This means you’ll most probably end up with a repair or replacement in this case.

Before you send the device in for repair, you can try to see what happens if you boot it to alternate modes. We suggest that you try to access Recovery Mode first by doing these steps:

  1. Turn off the device (if you can’t turn it off normally, wait until the battery drains).
  2. Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  3. When the green Android logo displays, release all keys (‘Installing system update’ will show for about 30 – 60 seconds before showing the Android system recovery menu options).

If your S9’s screen works during this time, then there may be an issue with Android operating system. Consider wiping the cache partition and doing a factory reset to see what happens. However, if the screen stays black and won’t turn on at all, go ahead and try to boot the device to Odin / Download Mode.

To boot your S9 to Download Mode:

  1. Turn off the device (if you can’t turn it off normally, wait until the battery drains).
  2. Press and hold the Volume Down key and the Bixby key, then press and hold the Power key.
  3. When the green Android logo displays, release all keys until you see the Download Mode screen.

Just like in Recovery Mode, if your S9 screen works only on Download Mode, then something’s not going on right with your operating system. The good thing about this is the fact that you don’t have a screen problem at all. All you need to do is to probably do a master reset in Recovery Mode.

Problem #2: Galaxy S9 Plus touchscreen not working in all areas

Purchased S9 Plus brand new after few months and few drops i noticed the screen slightly messing up here and there on certain areas of the keypad or areas of the screen. So i invested into a Otterbox and it seemed like (but not for sure) that it made it worse. maybe the pressure on the screen is what i assumed, so the screen malfunctioning was getting worse and worse as far as touching the screen sometimes have to press harder than normal on keys or they wouldn’t work at all. So one morning i woke up after having phone charging all night and the screen was completely unresponsive. everything lights up and volume and turn on like perfect working phone, except unresponsive screen, after trying to mess around with it here and there and realized that the screen worked in the morning so boiled that down to a theory that it maybe the cold. so i tried a test and put it in the freezer and after few minutes in there, it works perfect, like a new phone. i have searched all over internet for similar issues or fixes and found nothing, closed thing found was a post from someone who had a problem with the cold. — DANIEL

Solution: Hi Daniel. Once any hardware component had been damaged, it’s there forever unless there’s a software tweak that can be done to minimize its effects. In your case, there’s no software manipulation that you can perform to reverse the screen damage at all. Using protective cases like Otterbox is not a fix but a preventive measure. Adding it after the damage won’t make the screen any better. In fact, the extra pressure from the sides of that case may even worsen the situation.

Well, as far as putting a smartphone in a freezer to fix a broken screen is concerned, we’re not entirely convinced that it works. If it does for you, then there must be some unique circumstances that made it possible. But if you really are looking for a permanent solution to your screen problem, we suggest that you let Samsung check the hardware. If you’re lucky and the damage is only isolated to the display assembly, replacing this part may bring all your phone’s functionalities to their working order. If you only recently purchased this phone, make sure to check with Samsung if they can offer you a phone replacement instead. This is often a convenient option rather to wait for a repaired device. Some repaired Samsung phones may continue to similar or related symptoms after they were serviced because hardware damage is usually not isolated to one component. If service won’t be able to address all broken components, you’ll most probably end up with a broken device after repair.

 


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.

How to fix Galaxy S9 screen issue: white vertical line showing on the far right

Today’s troubleshooting episode addresses a common issue — screen malfunction. Together with Power issues, screen problems are some of the usual topics that we receive from a lot of people. In today’s #GalaxyS9 troubleshooting article, we’ll show the things that you can do to troubleshooting the problem. When it comes to hardware-related problems, there’s usually very little an end-user can do. In most likely scenarios, devices have to be sent in for repair. There are some not-so-obvious cases though that may be difficult to diagnose right away, just like in the first case below. In this post, we’ll show you how and when to know if there’s a physical trouble or not.

Before we proceed, we want to remind you that 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.

Problem #1: How to fix Galaxy S9 screen issue: white vertical line showing on the far right

Hello. I recently purchased a Samsung Galaxy S9 Plus. After three days, I noticed there is a white vertical line of about 1.25″ on the far right edge of display. It was not there when I first got the phone. The line is narrow, but I worry about it growing.  I turned the phone off and restarted it, but the line is still there. Any ideas what this is, and what can be done to remedy it?

Solution: Although majority of screen problems are caused by bad hardware, poorly coded apps or software bugs may cause the screen to malfunction as well. Since hardware-related problems are not fixable on your level, there’s fair chance that you’ll most likely send the phone in for repair. To see whether or not you have a physically damaged screen, you can try to do the troubleshooting steps below.

Check for bad third party app

As mentioned above, third party apps can sometimes cause problems with the screen like discoloration, unresponsiveness, temporary presence of vertical or horizontal lines. To see if one of your third party apps is to blame, try to restart the phone to safe mode. Safe Mode is another software environment that helps technicians isolate app problems. This is often used if a suspected third party app interferes with Android. While on safe mode, all apps you’ve added will be suspended. If the screen won’t show the vertical line when on safe mode, that’s a sign of a bad third party app in the system.

If you haven’t tried booting your S9 to safe mode yet, follow these steps:

 

  1. Turn the device off.
  2. Press and hold the Power key past the model name screen.
  3. When “SAMSUNG” appears on the screen, release the Power key.
  4. Immediately after releasing the Power key, press and hold the Volume down key.
  5. Continue to hold the Volume down key until the device finishes restarting.
  6. Safe mode will display in the bottom left corner of the screen.
  7. Release the Volume down key when you see Safe Mode.
  8. Check for the problem.

If the screen works normally and won’t show any vertical line, you can bet one of your apps is to blame. To determine which of your third party apps is causing the trouble, you must use the process of elimination. These are the steps that you want to do to achieve that:

  1. Boot to safe mode.
  2. Check for the problem.
  3. Once you’ve confirmed that a third party app is to blame, you can start uninstalling apps individually. We suggest that you begin with the most recent ones you added.
  4. After you uninstall an app, restart the phone to normal mode and check for the problem.
  5. If your S9 is still problematic, repeat steps 1-4.

Boot to alternate modes

If nothing changes when the phone is on safe mode, that means that the problem is not caused by a bad app. The next troubleshooting step to do then is to check for the possibility that this may be caused by an Android bug. To do that, you want to restart the phone to either Recovery Mode or Download/Odin Mode. Either of these two are independent of Android, which means that if the issue is due to an Android OS glitch, the screen should work normally, that is, no vertical lines will be there, if you boot your S9 to any of them. Like Safe Mode, these two modes are usually for Samsung technician’s use only but over the years, enterprising Android users have been using them to troubleshoot and improve Samsung device performance. Recovery Mode is where you can perform a few important system troubleshooting like cache partition wipe, master reset, among others. Download Mode is where you flash or manually install Android stock firmware or custom ROM.

Booting to any of these two modes in your case is meant to check for a difference in screen performance only. If the vertical lines still show up, that means the problem is hardware in nature.

How to boot a Galaxy S9 to Recovery Mode

  1. Turn off the device. This is important. If you can’t turn it off, you’ll never be able to boot to Recovery Mode. If you are not able to shut the device off regularly via the Power button, wait until the phone’s battery is drained. Then, charge the phone for 30 minutes before booting to Recovery Mode.
  2. Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  3. When the green Android logo displays, release all keys (‘Installing system update’ will show for about 30 – 60 seconds before showing the Android system recovery menu options).

How to boot a Galaxy S9 to Download Mode

  1. Turn off the device. This is important. If you can’t turn it off, you’ll never be able to boot to Recovery Mode. If you are not able to shut the device off regularly via the Power button, wait until the phone’s battery is drained. Then, charge the phone for 30 minutes before booting to Recovery Mode.
  2. Press and hold the Volume Down key and the Bixby key, then press and hold the Power key.
  3. You’ll know if you’re on Download Mode when you see a screen that says “Downloading….”

Get professional help

If vertical lines persists and continue to show when the phone is restarted to Recovery or Download Mode, you can assume hardware malfunction is behind it. Perhaps you dropped the phone and that damaged the screen assembly. We don’t know the full history of your device to be 100% sure what may have caused the screen to behave this way but if the lines annoy you and you want a permanent fix, you should contact Samsung repair or replace the device for you.

Problem #2: What to do if there’s dead spots on your Galaxy S9 screen

Hi there! The problem I’m having is dead spots on the touchscreen. One day it was working perfectly and out of nowhere it started acting up and not detecting the touches. It happens at the very top of the screen where the notification bar is located and more or less in the middle of the screen, it is like a line from left to right that doesn’t work. The thing is that it happens after you unlock the phone, on the lockscreen it works perfectly. What can I do? I don’t have many apps and I don’t want to backup all my phone and do a factory reset and still have the problem when I restart my phone. I think the problem is the latest update, is there any way I can downgrade to a previous version or something like that?

Solution: If the portions of the screen only behave properly in certain conditions and the issue does not occur on the lockscreen, that means it’s not a hardware issue. It’s probably due to an app or operating system bug. Try booting the phone to safe mode first to see if there’s a bad third party app involved. If that doesn’t fix the issue, do a factory reset.

For reference, these are the steps on how to factory reset your S9:

  1. Create a backup of your data.
  2. Turn off the device.
  3. Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  4. When the green Android logo displays, release all keys (‘Installing system update’ will show for about 30 – 60 seconds before showing the Android system recovery menu options).
  5. Press the Volume down key several times to highlight ‘wipe data / factory reset’.
  6. Press Power button to select.
  7. Press the Volume down key until ‘Yes — delete all user data’ is highlighted.
  8. Press Power button to select and start the master reset.
  9. When the master reset is complete, ‘Reboot system now’ is highlighted.
  10. Press the Power key to restart the device.

Problem #3: What to do if Galaxy S9 screen is broken

Hi. I dropped my Galaxy S9 a few months ago and the screen broke, damaging the pixels. There are a few lines running horizontally along the screen now. It was working fine but now the screen flickers a lot and turns dim and then grey and then turns off. If I keep the screen turned on like this the phone will restart after a few seconds. A new screen is quite expensive and I’d rather just get a new phone but I need to make do with this until I do get a new phone. Is there any way I could make my phone work properly for another month or two without replacing it’s lcd? any help would be much appreciated.

Solution: You can’t fix a physically mangled component by doing some software tweaks. Screen problems are some of the most common hardware issues for smartphones and unfortunately, there’s no software solutions for them. You either have to wait until you have the resources to have the screen assembly repaired, or continue using the phone in its current state.

 


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.

Galaxy S9 screen won’t turn on after using phone in pool

Samsung’s “waterproof” of their top tier Galaxy devices like the Galaxy S9 is overrated. While IP68 rating may be  effective in preventing damage from occasional splashes or exposure to water and dust, many devices have failed after they’re submerged in a pool, sea or ocean. In this short troubleshooting article, we show you what you can do if you find your S9 screen not working after exposing the device to water.

Before we proceed, we want to remind you that 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.

Problem: Galaxy S9 screen won’t turn on after using phone in pool

Hello! I have a Samsung S9 and have the screen cracked at the moment. It’s not a deep crack and I have a screen protector on it. Today I had the phone submerged into the pool water for a few seconds, I took it out and I dried it. It worked fine and I had no issues with it for about 3 to 4 hours. Then after I plugged it in to charge the screen began to blink and did not turn on anymore. My phone rings and “charges” but when i try to turn on the screen it blinks a white and yellow color and doesn’t turn on. I’ve had it sitting without touching for 2 more hours but still nothing. Any suggestions please??!! Maria Diez

Solution: Water protection on your Samsung Galaxy S9 is limited and can fail even under normal circumstances. You should have avoided submerging the device in water knowing that the screen is already compromised. If the only thing you did was to use the phone in the pool before the screen turned off, it’s safe to assume water must have damaged the screen assembly. In this case, there are two things that you can try. One is dry the phone and see what happens. The other is to seek professional help in fixing the hardware malfunction.

How to dry your Galaxy S9

Ideally, you should let a professional dry the phone for you. Since that involves a fee, you can skip that and do it yourself. The first option for you to dry the phone is by using rice. In a container, pour the rice and put your S9 in. Make sure that you remove its external case or screen protector and thoroughly dry it using a clean soft cloth. Cover the phone in rice and leave it there for a few days. The idea is to allow rice to absorb the water or moisture in the phone.

The other way to dry your phone is by putting it inside a container and to use silica gel to suck the water out. Again, you want to leave the phone in an airtight container with the silica gel desiccant for a few days.

Remember, drying your phone won’t necessarily fix it. The aim of this one is to remove the water or moisture from the system and nothing else. If you’re lucky and there’s still no permanent damage to the screen assembly, you may have a working phone. If drying won’t change anything, you must do the second option–repair.

Let a professional repair your S9

Having water in your phone is usually a death sentence but in some cases, no permanent damage may have occurred yet. Although we are not very optimistic about your particular case, we still recommend that you allow a trained personnel to check the extent of the hardware damage so you’ll know how much you’re going to shell out for the repair. The least that you’ll spend here is probably about $200 dollars as you can get a good screen assembly for the S9 for about that price. Even if you’ll let Samsung do the screen replacement (water damage voids the warranty by default), you’ll still probably end up paying that amount, or even more. We highly recommend though that you let Samsung do the screen replacement to have a guaranteed result.

 


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.

How to fix a Galaxy S9 screen that turns black and won’t turn on

Some unfortunate Galaxy S9 owners may encounter screen problems. In this article, we have a Galaxy S9 with a screen that turns black and won’t turn on. If you have a similar situation, check out below the things that you must do.

Before we proceed, we want to remind you that 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.

Problem: Galaxy S9 turns black and won’t turn on

My Samsung Galaxy s9 was working fine and i was on Instagram then the screen started going crazy and looked split into like 100ths and I clicked the home button and saw the home screen then it was tiny and and in like 100 rectangles down the screen and the phone started getting hot so I tried to turn it off and then the screen just went went black but it isn’t off when you press the home button the back button and other button light up and the notification light is flashing because I’ve gotten some texts (I heard the text noise still) and the screen seems to respond when it is touched (vibration).

Solution: Looks like you have a toast screen. The signs you mentioned are consistent with a dying or failing screen assembly. This is not a problem with the motherboard as your phone is not completely dead. In fact, it still is working because it continues to make some sound and vibrates when touching the screen.

Perform a forced reboot

In case the screen has simply suffered a hiccup, try to simulate the effect of pulling out the battery to refresh the system. This procedure is called forced reboot. Here’s how it’s done:

  1. Press and hold the Power + Volume Down buttons for approximately 10 seconds or until the device power cycles. Allow several seconds for the Maintenance Boot Mode screen to appear.
  2. From the Maintenance Boot Mode screen, select Normal Boot. You can use the volume buttons to cycle through the available options and the lower left button (below the volume buttons) to select. Wait for up to 90 seconds for the reset to complete.

Run device to alternate boot modes (Recovery or Odin)

If nothing works after attempting a forced reboot, the other troubleshooting step to do is to restart the device to either Recovery Mode or Odin Mode or both. If the screen works in any of these software environments, there must be a problem with Android operating system.

How to boot a Galaxy S9 to Recovery Mode

  1. Turn off the device. This is important. If you can’t turn it off, you’ll never be able to boot to Recovery Mode. If you are not able to shut the device off regularly via the Power button, wait until the phone’s battery is drained. Then, charge the phone for 30 minutes before booting to Recovery Mode.
  2. Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  3. When the green Android logo displays, release all keys (‘Installing system update’ will show for about 30 – 60 seconds before showing the Android system recovery menu options).

How to boot a Galaxy S9 to Downlod Mode

  1. Turn off the device. This is important. If you can’t turn it off, you’ll never be able to boot to Recovery Mode. If you are not able to shut the device off regularly via the Power button, wait until the phone’s battery is drained. Then, charge the phone for 30 minutes before booting to Recovery Mode.
  2. Press and hold the Volume Down key and the Bixby key, then press and hold the Power key.
  3. You’ll know if you’re on Download Mode when you see a screen that says “Downloading….”

Remember, if the screen works in any of these modes, that’s a clear sign that you have an Android OS issue. Be sure to factory reset the device in Recovery Mode to fix it.

Let a technician replace the screen

We don’t know the full history of your device so we can’t say for sure what caused the screen to fail. If you are unable to fix the problem on your level, bring the phone to Samsung Service Center so it can be examined and repaired. The least that can be done here is screen replacement so be sure to prepare some money for repair fee or parts replacement.

 


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.