What To Do If Your Samsung Galaxy Z Flip 3 Keeps Lagging

The Samsung Galaxy Z Flip 3 lagging issue can be caused by several factors. It can be due to a software issue, too many apps running, or a hardware problem. To fix this, you will need to perform a series of troubleshooting steps.

The Samsung Galaxy Z Flip3 is a premium Android smartphone that is best known for its foldable screen design. It can easily fit in your pocket yet offer a full sized Android experience. Some of its outstanding features include an IPX8 rating for water resistance, 120 Hz Dynamic AMOLED 2X display, and the latest Snapdragon 888 chipset just to name a few.

Why does my Samsung phone keep lagging?

One of the performance issues that you might experience with your Samsung Galaxy Z Flip3 is when it lags when you use it. You might experience the device stopping for awhile before performing an action or its overall usage is not smooth.

Here’s our troubleshooting guide to help you fix this problem.

Solution 1: Close all background apps on your Samsung Galaxy Z Flip 3

Close all background apps on your Samsung Galaxy Z Flip 3

If your phone has a lot of apps running in the background then this can contribute to the lagging issue that you are experiencing with the device. Apps use up RAM and with all of the RAM on your phone used the slower its performance will be.

If you have a lot of apps installed in your phone such as Facebook, Instagram, Twitter, and WhatsApp just to name a few and use them at the same time then you should consider closing them.

End running applications

Press the Application key found at the bottom of your Samsung phone.

To end one running application slide your finger upwards on the required application.

To end all running applications press Close all.

Try to check if your device still lags.

Solution 2: Perform a soft reset on your Samsung Galaxy Z Flip 3

Perform a soft reset on your Samsung Galaxy Z Flip 3

A soft reset is done when a minor software glitch occurs on your Samsung phone such as when it is lagging. It will maintain the performance of your phone and keep it running smoothly.

This procedure will reboot the operating system of the Samsung Galaxy Z Flip 3 and reload all of its services. Your personal data, files, and apps will remain unchanged

Soft reset

To turn off the Galaxy z Flip 3 by pressing and holding the Bixby button and the volume down button on the side of the device.

Choose Power off.

Choose Power off again. The phone will turn off.

Wait for a few seconds.

Press and hold the Bixby button on the side of the device to turn on the Samsung phone.

Once the device has started try checking if the lagging or crashing issues still occurs.

Solution 3: Start the Samsung Galaxy Z Flip 3 in Safe Mode

Start the Samsung Galaxy Z Flip 3 in Safe Mode

In case this issue occurs right after you downloaded a third party app from the Google Play Store then there’s a big possibility that the lagging problem is caused by the app..

You should try to uninstall this app on your phone then check if the issue persists.

If you downloaded several apps from the Google Play Store prior to the issue occurring then you should start the phone in this mode to check if one of the apps is causing the problem.

When your phone runs in this mode only the pre-installed apps will be allowed to run making troubleshooting app related issues easy to do.

Safe Mode

Turn the device off.

Press and hold the Side key past the model name screen appearing on the screen.

When SAMSUNG appears on the screen, release the Side key.

Immediately after releasing the Side key, press and hold the Volume down key.

Continue to hold the Volume down key until the device finishes restarting.

When Safe mode appears in the bottom left corner of the screen, release the Volume down key.

While in this mode, you can now uninstall apps that are causing a problem.

If you are not experiencing the problem on this mode then it’s likely caused by an app you downloaded. Find out what app this is and uninstall it.

Exit from this Mode

Press and hold the Side key.

Tap Restart > Restart.

The device will restart in standard mode and you can resume normal use.

Solution 4: Reset settings on your Samsung Galaxy Z Flip 3

Reset settings on your Samsung Galaxy Z Flip 3

There’s a possibility that a setting or a customization done on your Galaxy Z Flip 3 phone is causing this lagging issue. To check if this is what’s causing the problem you should reset your phone settings.

The phone will reset its settings to its defaults without doing a full factory reset. Any phone customizations will be discarded but personal data and settings of downloaded apps will not be affected.

Reset settings

From the Home screen, swipe up on an empty spot to open the Apps tray.

Tap Settings > General Management > Reset > Reset settings.


If you have set up a PIN, enter it.


The device will restart to perform the reset of settings.

Try to check if the issue still occurs.

Solution 5: Wipe the cache partition of your Samsung Galaxy Z Flip 3

Wipe the cache partition of your Samsung Galaxy Z Flip 3

In some cases, your phone will lag because it has a corrupted system cache data. In order to remove this corrupted data you will need to wipe the cache partition of your Galaxy Z Flip 3 phone.

Wiping the cache partition does not delete your personal data as it will only rebuild the cached data.

Wipe cache partition

Turn off the device.

Press and hold the Volume Up key, then press and hold the Side key.

When the green Android logo displays, release all keys (‘Installing system update’ will show for about 30 – 60 seconds before showing the Android system recovery menu options).

Press the Volume down key several times to highlight wipe cache partition.

Press Power key to select.

Press the Volume down key to highlight yes, them and press the Power key to select.

When the wipe cache partition is complete, Reboot system now is highlighted.

Press the Power key to restart the device.

Once the above procedure has completed try to check if your Galaxy Z Flip 3 still lags.

Solution 6: Perform a software update on your Samsung Galaxy Z Flip 3

A possible cause of this problem is an outdated software version running on your phone.

Samsung will usually release monthly software updates for this device to further enhance its capabilities and fix software bugs.

It’s best to make sure that your phone is running on the latest software updates to eliminate the possibility of a software bug that might be causing the issue.

Manual update

Open Settings, and scroll all the way down.

Find and tap Software update.

Tap Download and install to check for a new update.

Take note that your device will need an internet connection to get the update. It’s best to use a WiFi connection and not a mobile data connection as the former is more stable and faster.

Once the software update has been installed and your phone is running on the latest software version try checking if the issue still occurs.

Solution 7: Perform a hardware test on your Samsung Galaxy Z Flip 3 using the Samsung Members app

This app is a useful tool to determine any hardware failure your device has. If any part of your phone hardware fails to perform properly then this could contribute to the lagging issue you are experiencing.

To perform a hardware test

Open Samsung Members.

Tap on Get help.

Under Diagnostics tap on Start.

Choose all possible selections.

Tap Start to run the test.

If the test fails on your Samsung Galaxy Z Flip 3 then you will need to contact the nearest Samsung service center.

Solution 8: Perform a factory reset on your Galaxy Z Flip 3

A factory reset is recommended if all of the above solutions fails to fix the lagging problem.

This procedure will erase your phone data and bring it back to its original condition. Any corrupted data stored in the system which could be causing this problem will be completely removed.

Before proceeding with this step you need to backup your phone files. Any photos, files, contact lists, or notes just to name a few that you have saved in your phone will be deleted so make sure to make a backup copy of these.

Factory reset

Turn off your Samsung Galaxy device.

Simultaneously press and hold the Volume up and side buttons until the device vibrates and the Android Recovery screen appears then release all buttons. Allow up to 30 seconds for the recovery screen to appear.

From the Android Recovery screen, select Wipe data/factory reset. You can use the volume buttons to cycle through the available options and the side key to select.

Select Factory data reset. Allow several seconds for the factory data reset to complete.

Select Reboot system now. Allow several minutes for the reboot process to complete.

Set up your Android phone.

Once the reset process has completed immediately check if the issue still occurs.

Contact the nearest Samsung service center

If after performing all of the troubleshooting steps listed above your phone still keeps on lagging then there’s a possibility that this can already be caused by a hardware failure.

You need to contact your nearest Samsung service center to have your phone repaired.

If your phone is still under warranty then it won’t cost you anything to have the phone repaired. you might even get a replacement unit in case the cost of repairing the phone is not feasible anymore.

Final thoughts

The Samsung Galaxy Z Flip 3 is a flagship quality phone that uses an 8GB RAM combined with a Snapdragon 888 processor. This allows it to run multiple apps smoothly.

Any lagging issue that you might encounter is most likely caused by a minor system glitch which can be fixed by closing apps, uninstalling apps, or restarting the phone.

Feel free to visit our YouTube channel for additional troubleshooting guides on various devices

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