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Samsung Galaxy S9 keeps losing signal

There have been Samsung Galaxy S9 owners who’ve been complaining because their phones reportedly kept on losing signal. As a result, they could no longer send and receive text message, make and receive phone calls or connect to the internet via mobile data. Some of our readers said that it could be due to a firmware although there’s no concrete evidence to say likewise.

If you’re one of the owners of the device and are currently having similar issue, the best thing you could do is troubleshoot your phone as it might be just a minor problem with the firmware or network services. In this post, I will walk you through in troubleshooting your Galaxy S9 that constantly keeps losing signal. So, continue reading as we may be able to help you through this article.

Before anything else, if you have other issues with your device, try to browse through our troubleshooting page as we’ve already addressed several issues with this device. Odds are that we’ve already published a post that tackles similar problems. Try finding issues that have similar symptoms with what you currently have and feel free to use the solutions we’ve suggested. If they don’t work for you or if you still need our help, then fill up our questionnaire and hit submit to contact us.

How to troubleshoot Galaxy S9 that keeps losing signal

Service and reception issues aren’t always serious problems. They may happen from time to time but they don’t stay long in your phone. In fact, most of the time when your phone loses signal, it’s just a glitch but since we don’t know for sure why it’s happening on your Galaxy S9, then you need to do the following:

Use your phone in Safe Mode

This is to know if the problem occurs even if all third-party applications and services are disabled. There are times when third-party applications cause the phone to lose signal that’s why it’s important to do this. Assuming that the phone doesn’t lose signal in safe mode, it means that there’s a third-party application that causes the problem. Find out which is the culprit and get rid of it. Now, here’s how you run your phone in safe mode:

  1. Turn the device off.
  2. Press and hold the Power key past the model name screen appearing on the screen.
  3. When SAMSUNG appears on the screen, release the Power key.
  4. Immediately after releasing the Power key, press and hold the Volume down key.
  5. Continue to hold the Volume down key until the device finishes restarting.
  6. When Safe mode appears in the bottom left corner of the screen, release the Volume down key.

If the problem remains even in safe mode, then you must troubleshoot your phone’s settings and firmware instead.

Reset Network Settings

This procedure will cover all other possibilities so instead of going through all the hassles of checking whether or not the flight mode is disabled or if some network settings have changed, you just have to do this one single procedure to rule them all out at once. The following changes will occur (and many more) once it’s done…

  • 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.

Now, here’s how you reset all network settings on your Galaxy S9:

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

After this, continue using your phone to know if the signal still cuts off and if it still does, then try the next procedure.

Perform Master Reset

At this point in time, it’s necessary to perform the master reset which will rule out the possibility that it’s just a result of a firmware problem. Your phone will be brought back to its default configuration and more often than not, this procedure will fix whatever the problem is. However, make sure to backup your important files and data as they will be deleted during the process especially ones that are stored in your phone’s internal storage.

  1. Back up data on the internal memory. If you have signed into a Samsung account on the device, you have activated Anti-theft and will need your Samsung credentials to finish the master reset.
  2. Turn off the device.
  3. Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  4. 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).
  5. Press the Volume down key several times to highlight ‘wipe data / factory reset’.
  6. Press Power button to select.
  7. Press the Volume down key until ‘Yes — delete all user data’ is highlighted.
  8. Press Power button to select and start the master reset.
  9. When the master reset is complete, ‘Reboot system now’ is highlighted.
  10. Press the Power key to restart the device.

If the problem isn’t fixed after this, then you should call your service provider as there’s a possibility that it’s a network problem.

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