Galaxy S7 Edge keeps on rebooting when not connected to a charger, other issues

Looking for solutions to your #GalaxyS7 woes? This article may help you! We give you 6 other issues that we’ve collected from reports from some S7 users since last week. We hope that Android community will find this post helpful.


Below are the specific topics discussed in this article:

  1. Galaxy S7 stuck in recovery mode after OTA update
  2. Galaxy S7 Edge touchscreen not turning on
  3. Recover SMS and phone logs from Galaxy S7
  4. Galaxy S7 Edge keeps on rebooting when not connected to a charger
  5. Galaxy S7 battery drain issue
  6. Galaxy S7 Edge screen is totally unresponsive

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, or you can install our free app from Google Play Store.

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 S7 stuck in recovery mode after OTA update

Hello. This is for an S7 on Sprint. You have some great info on your site. I tried them all and nothing works. Here is my problem. they did a firmware update last night. I let it download and said install and then just left it there and went to bed. When i got up this morning, it was showing the Android screen for about 5 seconds (normal), then it would go black for a couple seconds and then show the Android screen again. It wouldn’t get past that screen.

so i found your website and tried all of them. Now it says in the upper left hand corner “recovery booting…” the only thing that changes it is if i push the home key and the volume down and then it comes to a blue warning screen and if i push the volume down key it say downloading something that takes about .5 seconds. and goes right back to the recovery booting again. if i do it the other way it just goes straight to that screen without the really short download page. I have tried it plugged in and not plugged in. please respond by email. Thanks. Any ideas? — Shawn

Solution: Hi Shawn. If you followed all our suggestions regarding this issue like wiping the cache partition, updating all apps, and doing a factory reset without positive result, then the next logical step is to contact your carrier so you can request for a phone replacement. If it’s their system update that messed up your device, then there are probably more people experiencing similar issue. We are yet to receive reports from other Sprint users though so we can’t confirm if this is network-wide problem.

Problem #2: Galaxy S7 Edge touchscreen not turning on

Hi! They bought me a Samsung S7 Edge from B&H 2 weeks ago. i am in Argentina. i started using it on Thursday without any problems. On Tuesday i was buying it a cover and they turned it off at the shop so as not to hurt the phone. when i turned it on again the touchscreen no longer worked and by restarting the phone the same happens. i cannot even turn it off. what appears is “insert your PIN number” and the dialing pad at times when i press a button on the side or the main button but the touchscreen looks as if it was dead. i did not hit the phone or anything…what could be the problem? here in Samsung Argentina they told me that it could be either the touchscreen or the “mother” plaque of the phone…please help me! B&H, Squaretrade insure and Samsung are not taking responsibility for it. — Maria Luisa

Solution: Hi Maria Luisa. We’d say the problem must be something on the screen assembly, probably a malfunctioning digitizer. There are three major parts in a screen assembly — LCD, digitizer, and digitizer flex cable. The LCD is the monitor that displays the photos, videos, etc. The digitizer is a thin layer or glass on top of the LCD that converts your touches to digital signal down the flex cable and onto the rest of the system for processing. If the phone doesn’t respond when you touch the screen, then the digitizer may be causing it. We can’t know what happened exactly so you must either have the phone repaired or replaced to fix the issue. Before doing repair or replacement request, we suggest that you try to boot the phone in different modes first to see if you can reboot it back normally afterwards. For reference, below are the specific steps that you must do:

Boot in Recovery mode

  • Charge the phone for at least 30 minutes.
  • Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  • When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  • When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
  • Using the Volume Down key, navigate through the options and highlight ‘wipe cache partition.’
  • You can either wipe the cache partition or do a factory reset when in this mode.

Boot in Download Mode

  • Charge the phone for at least 30 minutes.
  • Press and then hold the Home and Volume DOWN keys, then press and hold the Power key.
  • When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume DOWN keys.
  • Wait until the Download screen appears.
  • 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.
  • Use Google to look for a guide on how to do it.

Boot in safe mode

  • Charge the phone for at least 30 minutes.
  • Press and hold the Power button.
  • Once the ‘Samsung Galaxy S7’ logo appears, release the Power key and immediately press and hold the Volume Down button.
  • Continue holding the button until the phone finishes rebooting.
  • Once you see the text “Safe mode” at the bottom left corner of the screen, release the Volume Down button.
  • 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.

Problem #3: Recover SMS and phone logs from Galaxy S7

Two days ago, my text messages, phone call log, and contacts were nowhere to be found on my phone. I rebooted my phone and my contacts were restored (slowly) as they are backed up on Google, but my text messages and phone call log were not. Also, some recently saved contacts were not restored for some reason. I would like to see if there is a way to restore these through a hidden or recoverable file that may be within the phone, so it would be great if you could help as I can’t find any solutions myself. Thank you very much! — Steven

Solution: Hi Steven. The only way to recover files or stuff deleted from a device like an Android phone is by getting them from a backup (such as a cloud service or another device), if you have one in the first place. If you are not in a habit of backing important things up like contacts, photos, videos, etc, you’ll always lose stuff when your primary device fails. Needless to say, there’s no way to recover your missing SMS and phone logs at this time.

Problem #4: Galaxy S7 Edge keeps on rebooting when not connected to a charger

Hi. My Samsung S7 Edge has a problem. It would shut down on its own, even though it still has a lot of battery. And when i turn it back on immediately, the battery would be even way less. I also have noticed that this problem won’t occur if I constantly charge my phone. Right now, it has become worse. The moment I unplug my charger, my phone would immediately shut down. I have went to Samsung’s repair services over here, and they said that I had to change the motherboard of my phone. But after Googling about this and seeing that others had a similar problem, they all said it was the battery. At first, I did think it was the battery, but Samsung’s repair services here said it was the motherboard. Although everything seems to be alright with my phone, except how the battery would be drained down so much after shutting down all the time, I am unsure whether the problem is the battery or the motherboard. Do you think I should change the battery? — Daniela

Solution: Hi Daniela. If you want first hand information which hardware is failing, you must submit the phone for a repair. We think it’s a battery issue but it can also easily be something on the motherboard. The phone must be physically checked in order identify the culprit. If the phone is still under warranty, go back to a Samsung store and let them repair or replace the phone.

You can also do the basic software troubleshooting first before you visit Samsung. Make sure that you factory reset your phone and observe it for a day. Try not to install anything while observing how it’s doing. For reference, these are the steps on how to master reset your device:

  • Create a backup of your files.
  • Turn off your Samsung Galaxy S7.
  • Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  • When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  • When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
  • Using the Volume Down key, navigate through the options and highlight ‘wipe data / factory reset.’
  • Once highlighted, you may press the Power key to select it.
  • Now highlight the option ‘Yes — delete all user data’ using the Volume Down key and press the Power button to select it.
  • Wait until your phone is finished doing the Master Reset. Once completed, highlight ‘Reboot system now’ and press the Power key.
  • The phone will now reboot longer than usual.

Problem #5: Galaxy S7 battery drain issue

Started having trouble with my Galaxy S7 (Verizon) out of the blue last week. No new apps or anything installed but suddenly my battery was losing/using a full charge in an average of 4 hours, whether I was using the phone or not. (This was running in Power Saver mode, screen dimmed to almost unreadable, location services off, wi-fi calling turned off, auto-sync off, etc.).

Battery stats showed main power consumption by Android OS and Android System, usually 20-30% of battery consumption each. About 2 days later, a software update became available, which I updated. After updating the software, wiping cache partition and running in safe mode and power saver, I was able to increase my average battery life to about 6 hours, still not practical. Next I deleted nearly all my apps and installed Nova Launcher to replace TouchWiz and gained a tiny bit more. I’ve now spent hours over the past week searching for explanations and fixes to this problem and still I can’t make it through a day without at least 1 recharge. (Charging while powered on makes the phone really hot, but if I charge while powered off or in airplane mode it is fine, not sure if that is relevant.) Anything more is beyond my level of technical knowhow. Do I just have a bad battery or a software issue that can be fixed? Any help is greatly appreciated. Thank you! — Shorst41

Solution: Hi Shorst41. We would like to think of this one as being due to software/app issue but hardware malfunction is not far fetched as well. Most of the time, SUDDEN battery drain issue is caused by incompatible, not updated apps. We say you do a factory reset/master reset and observe the phone for a few days. As usual, make sure that you don’t install anything from third party developers so you’ll know the difference. The aim is to see how fast the battery drains if you strip the phone down of all third party software. You’ll still be able to use the phone for SMS and voice calls so you’ll not be off the grid during this time. Make sure that you update all apps and bloatware (every app that came with the phone) too. If you’ll have the same problem even at this state, that’s an indication that hardware may be to blame, probably a bad battery.

Problem #6: Galaxy S7 Edge screen is totally unresponsive

Hi Droid Guy. I know you get hundreds of emails but I was hoping you would be able to help me with my Samsung problem! I have scanned your website and I can’t seem to find the answer to my question.

So, I have a Samsung S7 Edge. The screen no longer turns on, I cannot seem to turn the phone off. I have tried holding the power and volume button and the home button combinations that have been listed on your site but none seem to be able to turn the phone off. I know the phone is still on as the message light is still blinking blue at me. The phone has been in this state since Monday. I have tried plugging my charger in and this also does not register on the phone. No charging light. Unfortunately, I put my phone on mute, so I am unsure if it still picking up messages etc. Who knows. I don’t know what Android version i am on but i update my phone when i need to. If you have any advice it would be much appreciated 🙂 Thank you. — Sally

Solution: Hi Sally. If the screen is totally unresponsive to touch, then the screen assembly may have failed for some reason. Kindly refer to our suggestion for Maria Luisa above. If the screen remains black after trying booting the phone to all three boot modes, then you definitely have a hardware failure. Also, if you dropped or exposed the phone to water or extreme heat or cold, then your best resolution is to have the phone replaced. Contact Samsung or your carrier for resolution.


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