How to fix your Samsung Galaxy S7 that went dead and would no longer boot up [Troubleshooting Guide]

Performance issues are among the most common problems Samsung Galaxy S7 owners have been complaining about since Android Nougat was first rolled out. Some said their devices just went dead and would no longer start while others reported theirs just got stuck on the logo shortly after the firmware got bumped.

In this post, I will walk you through in troubleshooting your phone that can no longer boot up. We will try to look into every possibility and rule them out one by one until we can easily determine what the problem really is and formulate a solution for it. If you’re one of the owners of this phone and are currently bugged by a similar problem, continue reading below as this post maybe able to help you.

Now, before anything else, if you have other issues with your phone, make sure you drop by our Galaxy S7 troubleshooting page for we have already provided solutions to hundreds of problems reported by our readers. Odds are that we may have already provided a solution to the problem you currently have so try to find issues that are similar with yours on that page and feel free to use the solutions we suggested. If they don’t work or if you need further assistance, fill up our Android issues questionnaire and hit submit to contact us.

Galaxy S7 screen went dead, unable to boot up and unresponsive

Problem: My Galaxy S7 is completely dead, when I put it on charge, there’s a battery icon with a lightning bolt that shows up, this icon will not go away unless I unplug the phone. There is no red led indicator of it charging nor the green ‘dot’ at the bottom of the screen. Also, no battery percentage. I have tried 7 different chargers with 3 different plugs, all of which are fully functional with other devices. Only 1 wire and 1 plug are strangely remotely working with the phone. I borrowed the official samsung charger for a few hours of my friend and I am still getting the same result. I do not want to sell/send the phone to be repaired as they reset the phone, I do not want to lose the very personal information on this device. Also, I do not know the ‘android version’

Solution: There are number of reasons we should consider why this is happening on your phone. As a matter of fact, this will range from software to hardware-related problem. Software, if the files and data had been outdated and the firmware could no longer recognized it once it is loaded to the system and that may be the reason your phone refused to boot up completely.  On the other hand, as you said that you tried several chargers but the device still unresponsive, then there is a possibility it is a hardware problem and if that happens, immediately bring your phone to the tech. But before jumping to the conclusion, we recommend you to rule-out first all the possibilities by doing the basic troubleshooting procedures on your phone. Here’s how:

Step 1: Let the device charge for 10-15 minutes for the battery might be drained

Perhaps, due to an empty battery that may be reason that your phone is unable to turn on. So, this time, we will let it charge for several minutes to verify if the battery caused the problem. After you do so, leave the device for 15 minutes to see if it will boot up successfully. But if it still refuses to power on even you’re connecting it to the charger, then move to the next method.

Step 2: Perform Forced reboot on your phone

While it is connected to the charger, try to do the forced reboot on your phone to eliminate the suspicion that it is not a glitch in the system caused the issue. This is the equivalent of the battery-pull procedure in which, it refreshes the memory and closes all unused running apps in the background. Follow these steps:

  1. Press and hold the Volume Down and Power keys together for 7 to 10 seconds.
  2. The device will then reboot.

But after you do so and nothing seems to change on phone’s performance, then you can immediately jump to the next procedure.

Step 3: Reboot it in Safe mode to know if a culprit triggered the issue

It is because of several apps you had been downloaded it is not far that one of it is the culprit and conflict the system. Through this android environment all downloaded applications will be disabled and only the pre-installed will run in the system. So, if your phone boots up successfully, then an app triggered it and the best thing you should do is to uninstall each app you have until the issue is fix. Here’s how:

  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.

But after doing the safe mode procedure and still- unresponsive, proceed to the next step.

Step 4: Try to Wipe the Cache Partition via Recovery mode

As you already performed several procedures on your phone but the issue still happening, so, this time we will have to delete all system caches in the directory. In fact, this procedure is recommended to all android users especially if the firmware had been upgraded. The purpose of doing so, is to make sure that all files and data are new and could perfectly and smoothly run in the system. Also, through this procedure the components inside your device will be powered up, so, if this just a firmware issue your phone will surely boot up.

  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.

However, after you wiped out the system caches and your phone is still unresponsive, then there is a big chance that a hardware problem triggered it. In this instance, you don’t have a choice but to bring your phone to the nearest shop so that the tech can check it. And since, this is not covered by warranty, so, you will be the one to pay and buy for the components needed on your phone.

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3 Replies to “How to fix your Samsung Galaxy S7 that went dead and would no longer boot up [Troubleshooting Guide]”

  1. Galaxy S7 Edge went unresponsive yesterday (laying closed on my desk with more than half battery). Blue LED light pulsed all day long. Next morning also the light was gone.
    None of the “restart” combinations work. (volume down + power, volume up + home + power, etc…)
    Tried to let the battery drain.
    Tried to recharge the phone (UBS or socket).
    No response at all. Phone remains black and silent.

  2. I have been charging my phone since yesterday n it just wont turn on. The LED indicator is not showing off any response(as in the green,blue,red,etc lights)n the screen itself is not showing me anything. What do i do? Please help

  3. hi.. I am using glaxy s7.. my phoe suddenly got hanged only samsung galaxy S7 home page is in display it is neither booting nor switched off. Power key is not working. Tried with reset by holding Power key and Volume down key it is getting restart but again after samsung galaxy s7 screen it is not booting up. what could be the problem please guide me in trouble shooting my phone.

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