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How to fix Samsung Galaxy S7 Edge crashing and overheating issue after system update (easy steps)

If you own a smartphone like the Galaxy S7 Edge it is normal that the device may heat up especially if you’re watching high definition videos or playing mobile games while charging. But if the device is overheating even you’re not using it, then, that’s a different story. Overheating, while not so common, may occur from time to time, in fact, we received emails from our readers complaining about their devices reportedly overheated and crashed after updating their firmware. We have to look into this problem to know why it occurs and hopefully help our readers fix it.

In this post, I’ll be tackling this issue, consider every possibility and rule them out one by one so that you may understand why this problem is happening to your phone. Of course, our primary goal is to fix the problem and make your phone won’t perfectly again and we will do that. So, if you’re one of the Galaxy S7 Edge users whose experiencing these type of problems, we recommend you to continue reading this article to give you an idea how to deal with them.

Before we proceed with our troubleshooting, if you are looking for a solution to a different issue, then visit our troubleshooting page for we have already addressed some of the most common problems with this phone. Browse through the page to find the solution that works best for you. If you still need our help after that, then contact us through our Android issues questionnaire.

Fixing Galaxy S7 Edge that overheats and crashes after a firmware update


There is one potential to this issue provided that it started after an update. As you know, major updates are supposed to fix problems reported by users and while that’s the case in almost every update Samsung rolled out for its devices, there are times when new issues emerge and more often it’s because of some caches that got corrupted or became obsolete during the update process.

System caches, while temporary and small, they play a great role in making your phone, apps and services run smoothly. If they get corrupted at some point, there could be a negative effect to your phone. With that said, the best thing to do about this problem that started shortly after a firmware update is to delete all system caches so that the firmware can replace them with new ones. This is how you do that…

  1. Turn off the device.
  2. Press and hold the Volume Up key, Home key, and Power key at the same time.
  3. When the phone powers on, the Android System Recovery screen appears approx. 30 seconds later.
  4. Release all of the keys.
  5. Press the Volume down key to highlight “wipe cache partition.”
  6. Press the Power key to select.
  7. Press the Volume down key to highlight “yes” and press the Power key to select.
  8. When the wipe cache partition is complete, “Reboot system now” is highlighted.
  9. Press the Power key to restart the device.

After the phone has rebooted, continue your observation to know if it would still crash or overheats and if so, then you have to do more than just wiping the cache partition. Continue reading below for some troubleshooting procedures you can do to determine the problem and hopefully fix it.

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Troubleshooting guide for Galaxy S7 Edge that keeps crashing and overheating

The very purpose of this troubleshooting guide is for us to know why this problem occurs in the first place, what causes it and what needs to be done to fix it. However, I understand that not all users are comfortable doing procedures on their phones that they don’t fully understand. So, if you’re hesitant to troubleshoot your phone on your own, you better bring it to the service center so that a Samsung tech can check it for you. But for those who are willing to do something about this problem, read on as one of the methods below may help you.

Look for signs of physical and/or liquid damage

Overheating and any sort of firmware issues can be caused by a physical damage and any impact that could render the phone useless should leave a mark on the outside. So, look for scratches, dents and cracks because if you see some, it’s always possible that this problem you have on your phone is due to a physical damage.

When it comes to liquid damage, it’s bit more complicated than the previous but that doesn’t mean you can’t do something about it. To check for possible liquid damage, do the following:

  • Look into the USB / charger port to find traces of liquid or any foreign materials.
  • You may use a cotton swab to clean the area or insert a small piece of tissue to absorb the moist.
  • If you can see some debris or lint, you can use a pair of tweezers to remove them.
  • You may also check the Liquid Damage Indicator (LDI) in the SIM card slot.
  • If the LDI is white, there’s no water damage but if it turned red or purple then water or any sort of liquid found its way into your phone.

In case there are signs of physical and/or liquid damage in your phone, it’s best that you bring it to the service center so that a technician can immediately check it for you.

Observe the phone in Safe mode

Applications that keep on crashing may affect the firmware which may also result to system crashes wherein the phone would freeze for a few seconds before it would shut itself down. More often when this happens, you would have an unresponsive phone. Third-party apps that need to be updated are often the cause of this problem.

Moreover, if there are a lot of apps running in the background, it may also lead to overheating. It may happen after an update or any time. We need to rule out these possibilities and to do so, you just have to run your Galaxy S7 Edge in safe mode to temporarily disable all third-party apps. While in that environment, continue your observation to know if the phone would still crash and overheat. This is how to run your S7 Edge in safe mode:

  1. Turn your Galaxy S7 Edge off.
  2. Press and hold the Power key past the Samsung Galaxy S7 edge 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.

If the crashes and overheating disappear in this mode, then it’s clear that your third-party apps have something to do about these issues. It’s difficult to pinpoint which app is causing the problem but if you already have some apps you suspect, you should try uninstalling them first, reboot your phone in normal mode and see if problems still occur. Here’s how you uninstall an app from your S7 Edge:

  1. From any Home screen, tap the Apps icon.
  2. Tap Settings.
  3. Tap Apps.
  4. Tap the desired application in the default list or tap Menu icon > Show system apps to display preinstalled apps.
  5. Tap Uninstall.
  6. Tap Uninstall again to confirm.

I know it’s easier said than done so if you think it would be a lot easier and faster to do a reset than to find out which app causes the problem, then I suggest you backup your files and data and then perform the Factory Reset:

  1. Back up data on the internal memory. If you have signed into a Google account on the device, you have activated Anti-theft and will need your Google credentials to finish the Master reset.
  2. From any Home screen, tap the Apps icon.
  3. Tap Settings.
  4. Tap Cloud and accounts.
  5. Tap Backup and reset.
  6. If desired, tap Back up my data to move the slider to ON or OFF.
  7. If desired, tap Restore to move the slider to ON or OFF.
  8. Tap the back key twice to return to the Settings menu, then tap General Management.
  9. Tap Reset.
  10. Tap Factory data reset.
  11. Tap Reset device.
  12. If you have screen lock turned on, enter your PIN or password.
  13. Tap Continue.
  14. Tap Delete all.

However, if your S7 Edge is still crashing or overheating in Safe mode, then you must do the next method.

Observe your phone in Recovery mode

The Android system recovery or Recovery Mode is the fail-safe of almost all Android devices. The phone that boots up into it will have all its components powered up like it usually does when it’s booted up into normal mode but the usual user interface and all other apps and services aren’t loaded. If the phone heats up while in this mode, then it’s clear the problem is with the hardware and not due to a firmware issue. In such case, the best thing you can do is bring the phone to the service center but before you do that, it’s best that you do the Master Reset. This will bring the phone back to its original or factory settings. There’s also a chance that it would fix the problem so it’s worth doing it. However, make sure you backup your files and data prior to doing this as they will be deleted. I also suggest you disable the Factory Reset Protection by removing your Google account from your phone before you even boot the device into the Recovery mode to make sure you won’t be locked out after the reset.

Once every is set and ready, follow these steps to do the Master Reset:

  1. Turn off your Samsung Galaxy S7 Edge.
  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 data / factory reset.’
  6. Once highlighted, you may press the Power key to select it.
  7. Now highlight the option ‘Yes — delete all user data’ 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.

If it fails to fix the problem, then it’s time to bring it to the service center. At least, you’ve done everything in your power to fix the problem but to no avail.

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