How To Fix Samsung Galaxy Z Flip 4 Slow Internet Connection Issue

Is your Samsung Galaxy Z Flip 4 experiencing slow internet connection issues? There are various factors that can cause this issue such as a software glitch, network problem, or wrong settings. To fix this you will need to perform several troubleshooting steps.

The Samsung Galaxy Z Flip 4 is the latest premium Android smartphone available in the market that uses the new Snapdragon 8+ Gen 1 chipset. It sports a foldable form factor allowing it to be used just like a regular sized smartphone when unfolded and when folded it can easily fit in your pocket. Some of its best features include a 6.7 inch Dynamic AMOLED display, armor aluminum frame, and a 3700 mAh battery.

Why is my Samsung phone internet so slow?

Why is my Galaxy Z flip so slow?

One of the problems that you might experience with your Samsung Galaxy Z Flip 4 is when the internet connection seems to be slow. This can happen when the phone is connected either to a Wi-Fi or mobile data network.

First we will be showing you the possible solutions to fix the connectivity problem when the device is connected to a Wi-Fi network then we will also be showing you how to fix the same issue when on a mobile data network.

Solution 1: Toggle the Wi-Fi switch of Samsung Galaxy Z Flip 4

When Galaxy Z Flip 4 is getting slow internet speeds the first thing you need to do is to toggle the Wi-Fi switch . This action will refresh your phone connection to the wireless router and usually fix the problem.

Turning off Wi-Fi then turning it back on

  • Swipe down from the top of the home screen.
  • Search for the WiFi icon then tap on it to disable it.
  • Wait for a few seconds then tap on it again to reconnect to the network.

When the Z Flip 4is connected to the network try to run a speed test using any of the speed test apps from the Google Play Store or you can simply run the test from your phone browser by visiting any of the popular speed test websites.

Take note that your speed will also depend on the router you are connecting to. If there are a lot of devices connected to the router and some devices are downloading data then you are most likely going to experience a slow connection. You should try to disconnect the other devices connected to it.

Solution 2: Toggle the Airplane Mode switch of Samsung Galaxy Z Flip 4

Another way of refreshing the Galaxy Z Flip 4 connection to the WiFi router is by toggling the Airplane mode switch. What happens in this case is that all incoming and outgoing radio communications are cut off when Airplane mode is on then when you turn it back on it re-establishes the connections.

Toggle Airplane Mode

  • From a Home screen, swipe up to access the apps screen.
  • Tap Settings.
  • Tap Connections.
  • Tap Airplane Mode switch to turn on. This is the switch with the aircraft symbol.
  • Wait for a minute then tap Airplane Mode switch again to turn off.
  • Try checking if the internet connection slow issue still occurs.

Solution 3: Restart the Samsung Galaxy Z Flip 4 and router

There are instances when the slow internet is caused by an issue with your router. What you need to do in this case is to refresh your router and phone in order to improve the connection speed. You can do this by turning off both devices then turning them back on again.

Restarting devices

  • Unplug power cord of the router from the outlet.
  • Press and hold the Volume Down button and the Power key of your Galaxy Z Flip 4 3 for 10 seconds.
  • When you see the Samsung logo on the screen release both keys and allow the phone to continue the boot process.
  • Plug back the power cord of the router to turn it on.
  • Wait for the router to broadcast its signal then let the Galaxy Z Flip 4 reconnect to the network.

After performing this step try to check if the internet connection improves.

Solution 4: Re-establish the Wi-Fi connection of Samsung Galaxy Z Flip 4

If the internet issue you are experiencing is caused by a misconfigured network settings in your device then forgetting the network settings might just be the solution.

Forget Wi-Fi network settings

  • Swipe down from the top of the home screen.
  • Tap and hold on the WiFi icon to open its Settings.
  • Tap the gear icon next to the network your phone is connected to.
  • Tap Forget at the bottom-right corner of the screen.
  • Tap the network you want your phone to connect and enter the password.
  • Tap Connect to reconnect the Samsung Galaxy Z Fold 4 to the network.

After performing these steps try checking if the WiFi network speed improves.

Solution 5: Reset network settings of Samsung Galaxy Z Flip 4

This procedure resets the cellular, Bluetooth and WiFi network settings of your Samsung Galaxy Z Flip 4 which will then be restored to their default values.

Resetting network settings

  • Open the Settings app on your Galaxy Z Flip 4.
  • Scroll down to and tap General management.
  • Tap Reset to view the reset options.
  • Tap Reset network settings.
  • Tap Reset settings and if prompted, enter your security lock.
  • Tap Reset to proceed with the network settings reset.

After the reset network settings procedure has completed try to check if this fixes the network issues you are experiencing with the device.

Solution 6: Perform a factory reset on your Galaxy Z Flip 4

In case the problem is caused by a corrupted operating system then a factory reset is highly recommended.

The factory reset will erase your phone data and bring it back to its original condition. 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.

After reset has completed don’t install any third party apps yet. Try checking first if the issue internet connection appears and improves.

Galaxy Z Flip 4 slow internet using mobile data

If you are using the mobile data connection of your mobile network then you are most likely going to get a 5G signal. There are however areas where some areas will not have a 5G signal in which case your phone might switch back to a 4G connection which is quite slow.

There are several factors that can affect the mobile data speed that your phone is getting. This can be due to location, number of users using the same cellular tower your phone is connected to, or even your phone settings.

Here’s what you can do to improve your mobile data speed.

Solution 1: Select the 5G network mode

You will need to make sure that your phone network mode setting is set to 5G as this offers a much faster mobile internet speed.

Here’s the speed comparison of the different network modes.

  • 3G signal: Average speed of 7 Mbps
  • 4G signal: Average speeds of 50 Mbps
  • 5G signal: Average speed of 400 Mbps

5G network mode

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

Tap Settings

Tap Connections

Tap Mobile networks

Tap Network mode then select 5G/LTE/3G/2G (auto connect)

Solution 2: Toggle Airplane Mode

Follow the same procedure found in the WiFi troubleshooting section.

Solution 3: Reset the network settings

Follow the same procedure found in the WiFi troubleshooting section.

Solution 4: Re-establish connection to your carrier by removing the SIM card

One of the best ways to fix the mobile internet service issue is by resetting the connection between the phone and your carrier. You can do this by turning off the phone and removing the SIM card. Wait for a few seconds before inserting the SIM card again then turn on the phone.

Once your phone connects to the cellular network try checking your mobile internet speed.

Solution 5: Perform a factory reset

Follow the same procedure found in the WiFi troubleshooting section.

Frequently Asked Questions

  1. How do I perform a software update on on Galaxy phone?

    Open Settings, and scroll all the way down.
    Find and tap Software update.
    Tap Download and install to check for a new update.

  2. Does a low battery life affect internet speed of Galaxy smartphone?

    If your phone is running low on battery then it can affect the network connection of your phone as not enough power will be available for the phone antenna. Make sure your mobile device has sufficient power.

  3. How to enable power saving mode on Galaxy Z Flip 4?

    Open Settings.
    Tap on Battery and device care.
    Tap on Battery.
    Tap on Power saving mode and toggle it On.

  4. How do I soft reset the Z Flip 4?

    Simultaneously press and hold the Power key and Volume down button on the right edge for approximately 15 seconds.
    Release the buttons when the Samsung logo appears.

  5. How do I start Z Flip 4 in Safe Mode?

    Press and hold the Power button and Volume down button (right edge) until the ‘Power off’ prompt appears on the screen then release.
    Touch and hold Power off until the ‘Safe mode’ prompt appears then release.
    To confirm, tap Safe mode.