My Samsung Galaxy S9 keeps losing signal. Here’s the fix.

There have been Samsung Galaxy S9 owners who’ve been complaining because their phones reportedly kept on losing signal. If this issue keeps happening, the result would be that they could no longer send and receive text messages, make and receive phone calls or connect to the internet via mobile data. Based on some reports from our readers, this could be a firmware problem, especially that it started without apparent reason. But it could also be a problem with your network as well. That’s why you need to troubleshoot your phone to be able to know why this issue occurs. 

In this post, I will walk you through in troubleshooting your Samsung Galaxy S9 that keeps losing signal. We will try to consider every possibility and rule them out one after another until we can determine what the issue really is and hopefully fix it. So, if you’re one of the owners of this phone and are currently being bugged by a similar problem, continue reading as this troubleshooting guide may be able to help you. 

Before we move on to our troubleshooting, if you happen to find this post while looking for a solution to a different problem, then visit our Galaxy S9 Help Guides page for we have already addressed some of the most common issues with this device. We may have already published articles that could help you fix your problem. Find issues that are similar to yours and feel free to use our solutions.

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:

First solution: 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. 

Second solution: 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.

Fourth solution: 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. Turn off the device.
  2. Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  3. When the Galaxy S9 logo shows, release all three keys.
  4. Your Galaxy S9 will continue to boot up into the Recovery Mode. Once you see a black screen with blue and yellow texts, proceed to the next step. 
  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’ 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.

I hope that we’ve been able to help you fix your Galaxy S9 that keeps losing signal. We would appreciate it if you helped us spread the word so please share this post if you found it helpful. Thank you so much for reading!

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We are committed to helping our readers fix the problems with their phones as well as learn how to properly use their devices. So, if you have other issues, you may visit our Help Guides page so you can check by yourself the articles we’ve already published that contain solutions to common problems. Also, we do create videos to demonstrate how things are done on your phone. Visit our Youtube Channel and please subscribe to it. Thanks.