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Fix Samsung Galaxy S7 that won’t turn on, charge or respond after an update

  • Learn how to troubleshoot your Samsung Galaxy S7 (#GalaxyS7) that won’t turn on when you press the Power key.
  • Understand and troubleshoot the problem that prevents your phone from booting up normally.
  • What you need to do if your Galaxy S7 became unresponsive after an update.

We’ve been receiving a lot of messages from Samsung Galaxy S7 owners that have experienced power-related issues with their phones. In this post, I will address three of the most common issues such as; S7 won’t turn on, can’t boot up successfully and won’t respond.

These issues might be caused by firmware and hardware problems but you have to rule out the first possibility. Continue reading below so that you’d know how to deal with these issues as they might happen to your sooner or later.

If you have other issues with your phone, visit our Galaxy S7 troubleshooting page for we have already addressed a lot of issues with this device. Find ones that are similar or related to yours and use the solutions we suggested. If you need further assistance, you can always contact and provide us will all necessary information about the problem. Just fill up our questionnaire and we’ll do all research for you. Don’t worry, it’s free.

Troubleshoot Samsung Galaxy S7 that won’t turn on

Problem: “Hey droid guy. I have a problem with my new Samsung Galaxy S7. It updated its OS, turned off on its own and when I pressed the Power key to turn it on, it didn’t. So, I’m stuck with a phone that won’t turn on and I can’t do anything with it. I am hoping you guys can help me fix it. Thanks in advance.” — Jodi

Troubleshooting: Hi Jodi. Thanks for providing all the details. Apparently, the problem started after the phone updated its firmware. It is tempting to just immediately jump into a conclusion that the new firmware caused this problem. However, being a technician myself, I’ve seen issues that appeared to have very obvious causes but were actually caused by other factors. In this case though, there are only two possibilities; if it’s not the firmware that has the problem, then it must be the hardware. But I ask you to troubleshoot it and here’s what you need to do:

Step 1: Forced Reboot your Galaxy S7 to make sure it’s not a system crash issue

System crashes are among the most common reasons why a phone won’t turn on or respond to anything. The thing is, your device can’t get out of it without your intervention. So, for this kind of issues, first thing I would do is do the forced reboot procedure:

  1. Press and hold the Volume Down and Power keys together for 10 seconds.
  2. The phone will reboot successfully provided that it was just a system crash and that there’s enough battery left.

Step 2: Charge your phone as the battery might have just been drained

In your description, you mentioned that your device just turned off after the update and won’t respond when the Power key is hit. It could be because its battery was completely drained.

So, after you tried to force your phone to reboot and it didn’t respond, try to plug in the charger and see if the phone charges. Aside from the very obvious reason, you will also know how the phone responds when it senses electricity is flowing through its circuits.

If it doesn’t respond, leave it plugged in for ten minutes and then try the forced reboot procedure again followed by an attempt to turn it on normally.

Step 3: Boot your Galaxy S7 in safe mode

Booting in safe mode will temporarily disable all third-party apps. So, if one of your apps caused the problem, then it should successfully boot in safe mode.

  1. Press and hold the Power key.
  2. As soon as you can see the ‘Samsung Galaxy S7’ 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.

Step 4: Try to boot your device in recovery mode

If your phone can’t boot in safe mode or if it’s still not responding when you hit the power key, you should try booting it in recovery mode to see if it can still power up its hardware.

In recovery, the front-end won’t be loaded but all components are powered up. If the issue is only with the firmware, then your device should boot in recovery mode without any issues.

  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.

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.

  1. When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  2. 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.

Step 5: Send the phone in for checkup and/or repair

You’ve done everything you could but your phone is still the turning on. At this point, you have no other choice but to send the phone in for repair or visit a local shop and have the phone checked.

You’re the owner, you know by yourself if the phone suffered physical or liquid damage and if so, then tell the tech about it. And since these damages aren’t covered by warranty, you would have to pay the tech and buy the component needed to make the phone work again.

Troubleshoot Samsung Galaxy S7 that’s not booting up

Problem: “I have the Galaxy S7 phone I bought 3 months ago. There was a small update I think about a few ago and it installed successfully, so I’m a bit confused right now why my phone cannot continue to power up to the Home screen just like before. To give you the details, when I power it up, the logo appears like it always does and then the screen goes blank. The phone is still powered on at this point because if I press the power key, it shuts down. Whatever I do, it just won’t go through. Can you help?” — Jen

Troubleshooting: If the phone turns on when you press the Power key but can’t successfully boot up to the Home screen, then it’s most likely a firmware issue especially if something significant happened just recently like firmware and app updates.

We really can’t be sure what happened to your phone but one thing is certain though, there was an update. At least, we have a suspect we can start our troubleshooting with. That said, I think it’s just the system caches that got corrupted and putting that into consideration, here are the things you can do to try to fix this problem:

Step 1: Wipe the cache partition on your Galaxy S7

System caches may have been corrupted during the recent update causing the phone to act abnormally after a few days. You can delete the caches without fear of having to lose your data and files. So, for this problem, that should be the first thing you should do:

  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.

Step 2: Try to do the master reset

Assuming your phone can successfully boot into recovery mode and that wiping the cache partition didn’t fix the problem, then next thing you should do is do the master reset. It will bring the phone back to its default settings as well as formats the data partition. However, you need to make a backup of all your files and data as they’ll be deleted:

  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.

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.

  1. When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  2. 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.

  1. Using the Volume Down key, navigate through the options and highlight ‘wipe data / factory reset.’
  2. Once highlighted, you may press the Power key to select it.
  3. Now highlight the option ‘Yes — delete all user data’ using the Volume Down key and press the Power button to select it.
  4. Wait until your phone is finished doing the Master Reset. Once completed, highlight ‘Reboot system now’ and press the Power key.
  5. The phone will now reboot longer than usual.

Step 3: Have the phone checked by a technician

If the first two steps failed, then you have no other option but to have the device checked by an authorized technician. Perhaps, the firmware needs to be reinstalled and if you’re the one to do it, the warranty will be void.

Troubleshoot a Samsung Galaxy S7 that’s not responding

Problem: “Hello TDG. My new S7 just won’t respond when I try to turn it on. Here’s what actually happened. Last night, I left my phone on the table beside my bed with 76% battery left. I didn’t charge it because I know it would take just around 5% to get the phone through the night without using it. When I woke up, however, the screen is black and when I attempted to turn it on, it didn’t respond. So, I thought that for some reason the battery got drained. I tried charging it but those charging indicators won’t also turn on. Should I have it repaired? What’s the problem with it? Help me please.” — Rick

Troubleshooting: Hello Rick. It seems like the operating system of your phone crashed that’s why it became unresponsive. Basically, when the firmware crashes, the phone won’t respond to the usual procedure you use in turning it on. It won’t even detect the charger being plugged in. Since the Galaxy S7 has a non-removable battery, you can’t just do the popular battery pull procedure to soft reset the phone. Fortunately though, it can easily be fixed. All you need to do is press and hold the Volume Down and Power keys together for 10 seconds and your phone should reboot.

I don’t think there’s a problem with your phone at all. Just do the forced reboot procedure and everything will be fine.

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48 Comments

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  1. thank you for the resolution….. u really helped me , i am out of my country and your solution helped working my phone again.. once again a big thanks to you.

  2. My s7 edge is not responding at all. When turned on it doesnt even load properly and gets a frozen screen, it then runs out of power..after reading through the trouble shoot steps and tryin to boot to safe mode n clear my cache the phone has stated a blue screen with the android logo exclaiming no command..it is currently frozen at this state again. Please help me out.

  3. Hey, i’m still having problems with mine.
    It went off and and its not coming on.
    When i plug it to charge, it just keeps on vibrating at intervals and a battery icon with the thunder sign keeps on flashing. I’ve left it to charge for over an hour.
    Once i try switching it on, it shows the samsung logo screen and goes off immediately.
    I’ve tried removing the back panel and trying to touch the battery area carefully incase the position might have shifted but no response still.
    What do i do?
    Thanks

  4. Hello!

    Just wanted to say thank you so much for the info that helped me to get my phone working again. I left it to charge for a few hours at night and when I woke up it was just dead and wouldn’t start back up. Tried charging it multiple times with different chargers but to no avail. I was afraid that charging it had burnt the battery or something very drastic like that. However, pressing the down volume + power button finally restarted the phone!! What a relief!

  5. Hey,
    I went true all options.. still not working.

    My s7 was black screen, so i did the regular reset, first time i press volume down to restart, when it didnt, i press volume up to download..
    Since that moment, my device is dead.
    Nothing works.
    Can you please help me?

  6. Hello My Samsung 7 Edge will not start. I charged it last night nad it was working fine. Before going to sleep I checked my alarm as usual then and fell asleep but my alarm did not go off this morning there is just a black screen. the phone wont turn on and gets hot when I charge it. I have tried all the hard and soft reboot procedures but nothing happens. The phone is 6 months old and no damage.. I’m stumped

  7. Well my phone was fine then I went to the toilet came back and the phone would not turn on.
    Placed it on my charging pad that recognised the phone was on it but still no joy.
    After reading the fixes you have listed the one that worked for me was the volume down and power button.
    So thank you very much for your info.
    Regards Adam

  8. OMG thank you for helping me get my phone working again. 1 minute it was fine the next black. I don’t know why but im glad what you told me to do worked.

  9. Hi everyone!
    I have my Samsung Galaxy S7 tablet. The power button isn’t responding even if I tried to some of the procedures given. Whenever I charge it, the screen will just blink and after how many minutes, the logo of Samsung will appear but after that, the screen will return to be black again and the whole cycle continues. I’m really in need of your help. Please help me because I really need this thing for my education. God bless!

    Thank you so much!

  10. thank you so much it worked. My A7 was turned off and it was not turning on at all did hold the power button and the lower volume key and it turned on. Thanks a lot…cheers!

  11. i tried everything and my phone is still unresponsive. i tried pressing all various combs of the home, vol, and power buttons. i tried charging it. nothing works. it keeps getting really hot when its left charging for a while .. also is it possible to get heat damage. it was getting petty hot to the touch before it cut completely off ( while it was charging)

  12. Re:

    “Assuming your phone can successfully boot into recovery mode and that wiping the cache partition didn’t fix the problem, then next thing you should do is do the master reset. It will bring the phone back to its default settings as well as formats the data partition. However, you need to make a backup of all your files and data as they’ll be deleted:”

    How do people get a backup of their data if they can’t boot their device?

    As someone that has worked in IT for 2.5 decades I can’t quite believe that “Android Recovery” mode only gives an option to “Wipe all data” with a factory reset… simply astonishing that we still have this nonsense in 2017 where user data is so entwined with firmware… absolute nonsense. Not your fault I know, but I feel you could perhaps be clearer in pointing this out, that at this stage if users don’t have backups of their files and data they are likely stuffed… unless of course that isn’t the case?

  13. Thanks Guys, really glad to have been able to find and fix my problem with your help. I will be sharing your site with other contacts.

  14. your awesome dude, my phone would not turn on and your answer was spot on.saved me a trip,thanks a ton.

  15. Hi…. i was on the video call when my S7 edge turned off. I thought it was drained so i charge it for an hour but when i tried to open its not working anymore. i even tried trouble shooting still unresponsive. i even watch in youtube for other ways to trouble shoot the device, nothing happen. my screen is blackout.no led light at all. but everytime i plug the device in the charger, the device get hot…. i would appreciate any advise.

  16. None of this worked for me 😭 The Samsung logo just keeps flashing on the screen, I go to switch it off but it won’t. My phone is also very hot

  17. My Samsung Galaxy S7 Edge screen is smashed and when it turned on the screen would go green but not it won’t even turn on, is there something wrong with the battery as well or just the screen

  18. Thank you so much, my phone turned back on!! The only odd thing is that now it boots it self up at any given time and the phone is very slow. I’ll give it a couple of hours and call tech support.

  19. My s7 Keep freezing. I’ve try both reset and hard reset factory clean. In about 30 seconds nothing work if i don’t push any buttons, its even freezing in bios

  20. Hey yall I had my S7 for a few months now and last night after being on youtube it had around 69% on the battery. So I was like I’ll still plug it up because I got to wake up earlier and get moving. So I plugged it up while I slept like I always do and I woke up and the screen was black and the charger light was on…..my charger light has a orange color to it. So I pressed the power key and held and all that stuff….nothing worked.

    So I went and got on my laptop and googled it and all I did was press the Power Button and the Volume Down Button for 10 Seconds then let go…..and the screen showed the battery picture of it charging and I was like really thats all it took LOL. Oh and I had the phone on the charger while I did it. I hope I was as detailed as possible so whoever reads this it will help. Thank you all for the comments.

  21. I tried everything mentioned
    Cannot force reboot
    Cannot charge
    Totally dead
    Not able to use mobile more than a week.
    Plz suggest me.
    Wat I should do with this Samsung S7 edge

  22. Tried every option you provided and the S7 still isn’t working. I’m very unhappy with this phone.

  23. Hi I need help my brother have me a s7 Samsung galaxy and he forgot the password so he had to jailbreak it.Well it kept turning off and on, it gets hot when charging so I factory reset it then rebooted it…now it won’t turn on unless I try and reboot it again but before it gets to the next screen after the recovery reboot screen it turns off. What do I do? How do I fix it?

  24. My S7 Edge freeze just like that after a system update, this is second time. They gave me a new phone for free after the first time. The indicator light is always on (blue), but the phone simply has no response. All the tricks mentioned above have been tried. I have been having problem with S7, I will never buy a Samsung again.

  25. Hi there, my samsung s7 edge is not responding at all. Even to charger it doesn’t respond.
    I tried pressing power start and volume down .
    Even it’s not sorted out.
    Pls help me.
    Om

  26. My phone is vibrating while plugged in saying “recovery booting” but I can’t get it to force restart like I have been able to in the past. It just keeps vibrating. When I unplug it, I can’t get it to respond to the force restart either. Is it dead??

  27. Thank you so much. I was in an app and my phone froze. It wasn’t responding at all!! I appreciate it so much that I was able to fix it from the first part of this. You Rock thanks again ♥

  28. I just had the same problem with my phone thought it was broken, step one fixed me 🙂 thank you

  29. So i hooked my charger up at 15% n left it for 30mins. Came back to check n see if i had ene notifications n my phone was off n wasnt charging or turnin on.so i googled it on my tablet n did wat it sayd (press/hold power key n volume down) n my phone turned on but can tell that the battery drowned faster than normal.so i plugged it in again n same thing keeps happening. So far its happend 3X in less than 12hours. Id appreciate ur feedback

  30. I have had trouble with the latest update for my Samsung S7 (update 28/02/2017). My phone just ‘froze’ half way through the update / installation process. I have tried all the options that have been outlined on this page and noting worked. My phone is only 12 months old. I will have to take my dead phone back to Telstra.

  31. Hi I tried holdho ING power. r button and volume up at the same time. Of 20 30 seconds. No response what shall I do now. I have no service at all also the telephone hot!sx

  32. None of these worked. Phone is completely unresponsive and won’t even boot into any mode. No charging, led, vibration, etc. Completely unresponsive.

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