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What to do if your Samsung Galaxy Note 7 freezes, lags, slows down and turns off unexpectedly

While the #Samsung Galaxy Note 7 (#Note7) is a very powerful smartphone, it’s not perfect. Naturally, its performance will deteriorate over time as you continue using it and it continues to accumulate data. Issues like freezing, lagging, slowing down and random reboots are among the most common problems you may face.

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In this post, I will tackle these four issues and will give you the possible solutions and/or workarounds so that if one of them occurs, you already have an idea what to do to continue using your phone without any disruption. There will be four topics and I prepared a list of them just after the break. Click on the link to jump to a specific section in this post.

Now, before we begin our troubleshooting, if you have other concerns with your device, make sure to drop by our Note 7 troubleshooting page for we have already addressed majority of the serious issues with this phone since it was released. Moreover, if you further assistance, don’t hesitate to contact us by filling up our Android issues questionnaire. Make sure you provide us with important information about the problem so that we can give you more accurate solutions.

How to troubleshoot Galaxy Note 7 that freezes from time to time

Freezes may be caused by apps or a glitch in the firmware, although there are also instances that a hardware problem may result to the same symptom but most of the time, it’s with the software. That being said, we don’t have to do some troubleshooting for the hardware as we may end up voiding your warranty. For freezes, here’s what you need to do:

Step 1: Isolate the problem immediately to know if the cause is one of your downloaded apps

As I said, it’s possible that one or some of your apps is causing the issue but since applications are generally categorized into pre-installed and third-party apps, you need to boot the device in Safe Mode where the latter are temporarily disabled. This way, you will immediately know if the problem is caused by built-in apps or downloaded ones.

Here’s how you start your Note 7 in safe mode:

  1. Turn your Galaxy Note 7 off.
  2. Press the Power key and hold it past the screen that shows the model name of the device.
  3. When Samsung logo appears, release the Power key and immediately press and hold the Volume down button.
  4. Continue holding the Volume Down button until the device successfully booted up.
  5. Once you see “Safe mode” on the bottom left corner of the display, release the Volume Down button.

If the phone still freezes in safe mode, then the problem should be in one of the pre-installed apps or with the firmware. Otherwise, you just have to find the app(s) that causes the problem and either disable or uninstall it.

Step 2: Try deleting the system cache to force the phone to create new ones

The system cache can easily be corrupted especially if the phone got updated to a newer version, which I think already happened to your Note 7 considering Samsung rolled out some minor updates for the device when the battery issue was plaguing users. Deleting the cache will force the phone to create new ones to replace them. Don’t worry though, none of your files and data will be deleted. Here’s how.

  1. Turn off your Samsung Galaxy Note 7.
  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.
  3. When the Samsung Galaxy Note 7 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. 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.
  5. Using the Volume Down button, highlight the option ‘wipe cache partition’ and press the Power key to select it.
  6. Use the Volume Down button again to highlight ‘yes’ and press the Power key to select.
  7. It may take a few seconds to completely wipe the cache partition so wait a little.
  8. Once completed, the option ‘Reboot system now’ must be highlighted, so press the Power button to restart your phone.
  9. The Note 7 will then boot up normally.

Step 3: If wiping the cache partition fails, perform the Factory Reset

If all else fails, backup your data and reset your phone. A Factory Reset is enough to fix this problem but make sure you back up your files and data as they’ll all be deleted during the process.

  1. From the Home screen, tap the Apps icon.
  2. Find and tap Settings and then touch Backup and reset.
  3. Tap Factory data reset and touch Reset device.
  4. If you have screen lock feature turned on, enter your password or PIN.
  5. Touch Continue.
  6. Tap Delete all to confirm your action.

How to fix Galaxy Note 7 that lags randomly while using apps

If the phone lags while using any app, it’s obvious that it’s an app problem and you can almost be certain that the app you’re using when the phone lags is the culprit. However, there are cases wherein it’s caused by another app that is using or being used by the app you’re currently using and that’s what you need to discover to fix the issue. Here’s what you need to do…

Step 1: Clear the cache and/or data of the app you’re using when the phone started to lag

It’s a very simple procedure but it can fix the problem provided that it’s caused by the app you were using.

  1. From the Home screen, tap Apps icon.
  2. Find and tap Settings, then touch Applications.
  3. Find and touch the name of the app you were using.
  4. Touch Storage.
  5. Tap Clear cache.
  6. Tap Clear data, then OK.

Just to save you from losing data,

Step 2: Find the apps that are connected to the suspected app

If the problem still occurs, then try to find the apps that are possibly connected to it. For instance, if the lag started when you were using the Camera app, then you need to try clearing the cache and data of the Gallery app, which works hand-in-hand with the camera and other apps that have access to the camera like Facebook, Instagram, etc.

Step 3: Reset your phone if you cannot find the app that’s causing the problem

Finding apps that have issues seems to be so easy to do but it’s not especially if you have hundreds of apps installed on your phone. If you’re patient enough, you may do that but it may take hours before you can find it but if not, then a reset is necessary but make sure you backup your data and files first.

  1. From the Home screen, tap the Apps icon.
  2. Find and tap Settings and then touch Backup and reset.
  3. Tap Factory data reset and touch Reset device.
  4. If you have screen lock feature turned on, enter your password or PIN.
  5. Touch Continue.
  6. Tap Delete all to confirm your action.

I hope this helps.

What to do if your Galaxy Note 7 slowed down after weeks of use

Only a few can notice when a powerful phone like the Note 7 slows down in its performance a bit, however, if an average user can notice it, then it means that device slowed down noticeably which is not good, actually. For this, here’s what you need to do…

Step 1: Boot the device in Recovery Mode and then wipe the cache partition

There’s no need to go after the apps because based on reports, this kind of problem is with the firmware so go after the firmware and the first thing you need to do is delete system cache so it will be replaced:

  1. Turn off your Samsung Galaxy Note 7.
  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.
  3. When the Samsung Galaxy Note 7 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. 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.
  5. Using the Volume Down button, highlight the option ‘wipe cache partition’ and press the Power key to select it.
  6. Use the Volume Down button again to highlight ‘yes’ and press the Power key to select.
  7. It may take a few seconds to completely wipe the cache partition so wait a little.
  8. Once completed, the option ‘Reboot system now’ must be highlighted, so press the Power button to restart your phone.
  9. The Note 7 will then boot up normally.

Step 2: It’s time to do the Master Reset on your Galaxy Note 7

If the first step failed, then the next thing to do is to reset the phone, which will delete everything stored in its internal storage except, of course, system files. Transfer your files to your microSD card or computer before you follow these steps:

  1. Backup your data and files saved in the phone’s internal storage.
  2. Remove your Google account to deactivate the anti-theft function of the phone.
  3. Turn off your Samsung Galaxy Note 7.
  4. 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.
  5. When the Samsung Galaxy Note 7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  6. 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.
  7. Using the Volume Down button, highlight the option ‘wipe data / factory reset’’ and press the Power key to select it.
  8. Press the Volume Down button a few times to highlight ‘Yes — delete all user data’ and press the Power key to select it.
  9. It may take a few seconds to complete the reset so just wait.
  10. Once completed, the option ‘Reboot system now’ must be highlighted, so press the Power button to restart your phone.
  11. The Note 7 will then boot up normally.

How to troubleshoot Galaxy Note 7 that randomly turns off or reboots

For random reboots, there’s a great chance it’s a hardware issue so the only thing we need to do is rule out the possibility that it’s the firmware that’s causing it. With that said, just backup your data and files and then do the master reset.

However, if you are patient enough to follow the procedures in the previous sections, please do to although you may still end up doing the reset. After that, if the problem still persists, try to read these posts:

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