How To Fix Samsung Galaxy S9+ Does Not Automatically Connect To Mobile Data

The #Samsung #Galaxy #S9+ is one of the two flagship models released by the South Korean company last year. This phone is best known for having a large 6.2 inch Super AMOLED Infinity Display which makes it great to use for viewing various multimedia content. It’s powerful enough to handle multiple apps smoothly thanks to its Snapdragon 845 processor combined with 6GB of RAM. Although this is a solid performing device there are instances when certain issues can occur which we will be addressing today. In this latest installment of our troubleshooting series we will tackle the Galaxy S9+ does  not automatically connect to mobile data issue.

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How To Fix Samsung Galaxy S9+ Does Not Automatically Connect To Mobile Data

Problem: I have the S9+. Once I connect to WiFi my mobile data stops working completely. Once I leave the WiFi connection I have to completely turn my phone off and then back on before my mobile data will work and I can send text messages make phone calls browse the web Etc. Once I do this it continues to work fine. But once I connect to Wi-Fi again I have to completely turn it off again and back on. I have checked all of the settings that I know to check I have tried it with Smart Switch off and I have tried it with Smart Switch on. Thank you in advance for your time please help me if this is a crown issue then I will try to find another phone.

Solution: Before performing any troubleshooting steps on this phone it’s best to make sure that it is running on the latest software version first. If an update is available then I suggest that you download and install it first.

If this problem temporarily gets fixed when you restart the phone then this appears to be caused by a software glitch. Listed below are the troubleshooting steps that you need to perform for this particular issue.

Check if this is a network related issue

If you are in an area with a weak data signal then there’s a possibility that this issue will occurs. Try going to an area with a strong data signal then check if the problem still occurs. You should also try using a different SIM card in your phone to eliminate the possibility of the problem being caused by a faulty SIM card.

Reset the phone network settings

This procedure will reset all data connections back to its initial factory conditions. Take note that the following will occur:

  • Stored Wi-Fi networks will be deleted.
  • Paired Bluetooth devices will be deleted.
  • Background data sync settings will be turned on.
  • Data restrictive settings in applications that were manually turned on/off by the customer will be reset to the default setting.
  • Network selection mode will be set to automatic.

To reset the network connections:

  • From the Home screen, swipe up on an empty spot to open the Apps tray.
  • Tap Settings > General Management > Reset > Reset network settings.
  • Tap RESET SETTINGS.
  • If you have set up a PIN, enter it.
  • Tap RESET SETTINGS. Once complete, a confirmation window will appear.

Once this is done try checking if the issue still occurs.

Check if the issue occurs in Safe Mode

Another factor that can cause this problem is an app you downloaded to the device. To check if this is the case you will need to start the phone in Safe Mode since only the pre-installed apps are allowed to run in this mode.

  • Turn the phone off.
  • Press and hold the Power key past the model name screen appearing on the screen.
  • When SAMSUNG appears on the screen, release the Power key.
  • Immediately after releasing the Power 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.

In case the phone can register to the network in this mode then it’s likely that the problem is caused by an app you downloaded. Find out what app this is and uninstall it.

Wipe the cache partition of the phone

The phone system cached data is used to speed up the access to your phone apps. Sometimes this data can get corrupted which results in issues occurring on the device. To check if a corrupted cached data is causing the problem you will need to wipe the cache partition of the phone from the recovery mode.

  • Turn off the phone.
  • Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  • When the 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 to highlight “wipe cache partition.”
  • Press the Power key to select.
  • Press the Volume down key to highlight “yes” 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.

Perform a factory reset

One last troubleshooting step you should consider is a factory reset. This will revert your phone back to its original factory condition. Make sure to backup your phone data before doing the reset as it will be deleted in the process.

  • Turn off the phone.
  • Press and hold the Volume Up key and the Bixby key, then press and hold the Power 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 data / factory reset’.
  • Press Power button to select.
  • Press the Volume down key until ‘Yes — delete all user data’ is highlighted.
  • Press Power button to select and start the master reset.
  • When the master reset is complete, ‘Reboot system now’ is highlighted.
  • Press the Power key to restart the device.

In case the issue persists after performing  the troubleshooting steps listed above then this is most likely caused by a faulty hardware component. The best thing to do right now is to have the phone checked at a service center.

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