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How to fix Samsung Galaxy S7 Edge that shows “Unfortunately, System UI has stopped” error

  • Learn and understand the error message “Unfortunately, System UI has stopped” that started happening to #Samsung Galaxy S7 Edge (#GalaxyS7Edge) units after the recent firmware update.
  • Know the possible causes of the error message so you can formulate a way to fix it.
  • Learn how to troubleshoot the error before you send your device for repair.
  • Read about some of related problems sent by our readers that best describe the issue.

Galaxy-S7-Edge-system-ui-stopped

Android has its native user interface and that’s what majority of manufacturers are taking advantage of. However, big companies like Samsung want to customize the “look and feel” of their devices. That’s why if you’re an owner of the new Galaxy S7 Edge, you come face to face with TouchWiz every time you use your phone as it is the stock user interface of all Galaxy devices.

While many are enjoying their new smartphones, there are some users who have encountered the error message “Unfortunately, System UI has stopped.” It’s not really a common issue but we did receive some complaints from our readers who were seeking assistance on how to fix this problem.

So, in this post, I will tackle this error message and provide a troubleshooting guide that may help users who are currently bugged by it. I will also cite some of the complaints we received from our readers. If you already contacted us regarding this problem, try to browse through this page to see if your concern is among the ones I cited.

For those who have different issues, visit our troubleshooting page for we have already answered a lot of problems from our readers. We may have already provided a solution to your problem. If you need further assistance, you can always contact us by filling up our Android issues questionnaire. Remember that we need more information to be able to provide you with more accurate solutions.

Possible Causes of the Error Message

Samsung’s TouchWiz run on top of Android’s user interface. If one crashes, you’ll get the error message. So, we really can’t tell immediately what the problem is as there are other factors that may also trigger this error. The following are the most common causes:

  1. Some caches got corrupted during the update process. This occurs during firmware updates, although there are times when they get corrupted even without updates. You would know immediately if this is the case when the error shows up as soon as your phone finished the firmware update. See the troubleshooting guide below on how to fix this problem.
  2. Third-party apps and/or launchers may also cause this problem especially if they conflict with TouchWiz. One of the most common reason why it happens is compatibility. While developers constantly work to make their apps up-to-date when Google releases new Android versions, some just can’t keep up with it. As a result, their apps become incompatible with the new system and if the user installs one of them on their phones, they may cause issues such as this error.
  3. The newly downloaded firmware is corrupt or there are some files missing. This case happens when the update got interrupted or didn’t finish. For instance, if the firmware got downloaded successfully but the installation didn’t finish due to power interruption. Another case is that some data got corrupted during the process and as a result, the system cannot load all necessary files and services, which may lead to errors.
  4. The phone got damaged by liquid or physical force. The S7 Edge is water-resistant, not waterproof. So, if you recently used your phone under water and this problem occurred, it’s water-damaged. If you also dropped your phone on a solid ground prior to this problem, then it’s obvious what the problem is.

Troubleshooting Instructions

The purpose of this troubleshooting guide is to help you find out what the problem is and eventually fix it. However, if the error is a result of a more serious hardware issue, then there’s nothing we can do about it except have the phone checked by a technician. But before you actually do that, here are some things you need to do:

Step 1: Reboot your phone. If this is the first time you encountered the error message, then reboot your phone before doing anything. Crashes and glitches happen all the time and it might just be the case with your device. Doing so may save you from a lot of trouble.

Step 2: Delete the system cache. As I mentioned earlier, the most common cause of this error is corrupt caches, which may have occurred during the update. So, if you recently downloaded a new firmware version, this is what you’re going to do:

  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 Edge 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 wiping the cache partition. Once completed, highlight ‘Reboot system now’ and press the Power key.
  9. The phone will now reboot longer than usual.

Step 3: If you recently installed third-party apps or launchers, find out which one is the culprit. But then, of course, you need to verify if it really were the third-party apps that cause the problem. You can do so by booting your phone in safe mode:

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

If the error doesn’t show up in safe mode, then one of the third-party apps you installed might have caused it. Find out which one it is by uninstalling one app after another. You must start with apps that offer Home screen customizations like launchers.  To uninstall apps, follow these steps:

  1. From the Home screen, tap the Apps icon.
  2. Find and tap on Settings.
  3. Touch Applications and then Application manager.
  4. Swipe to ALL tab.
  5. Find and touch the apps in question.
  6. Touch the Force Close button first.
  7. Then, tap Storage.
  8. Tap Clear cache and then Clear data, Delete.

Step 4: It’s time you did the master reset. If you reached this point and you already wiped the cache partition, booted your device in safe mode, cleared the cache and data or even uninstalled suspected apps, then it’s time you reset the phone. Is it worth the trouble? Yes.

  1. Backup your data.
  2. Remove your Google account.
  3. Disengage screen lock.
  4. Turn off your Samsung Galaxy S7 Edge.
  5. 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 Edge 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 5: If all else fails, you should seek assistance from a technician. At this point, you did what you have to do in order to fix the problem to no avail. Therefore, it’s time you employ assistance from a technician who can do more tests.

Related Problems

Below are some of the problems we received from our readers that describe the issue well. Try to go through these to see if your concern is one of them.

Q: “My Galaxy S7 Edge updated recently and it went smooth actually. A few days later, however, I noticed that at some point the phone slows down, lags and even freezes from a few seconds. The problem got worse and now, when I hit the Home button, I’m greeted with the error message ‘Unfortunately, System UI has stopped.’ I don’t really know what’s the matter with this phone let alone a solution to the problem. Can you guys please help me out here. I just want this error to go away so I can use my phone again without any hitch. Thanks.

A: Since the problem has already been happening for a few days, I’m sure you’ve already rebooted your phone countless times. But I think it has something to do with the recent firmware update. That said, you should follow the second step in the troubleshooting guide above to delete old system caches. This way, the new system will create new ones that are compatible with it. I believe this is the only thing you need to do to fix the problem.

Q: “For some reason, an error message started showing up talking about the System UI or something that stopped. This is after I downloaded and installed some apps from the Play Store. When it shows up, the phone just stops working as well like it freezes or something. Do you have any clue what caused this? Help please.

A: You need to boot your device in safe mode to see if the error shows up in that state. If so, then you must do the master reset right away after you’ve backed up all your data and files. However, if the error never shows up in safe mode, then it’s confirmed that one of the apps you recently installed is causing the problem. Find that particular app and uninstall it, or before doing that, clear its cache and data and see if that makes a difference.

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