How to fix Galaxy J3 “Not registered on network” issue

Are you having a network problem on your Galaxy J3? Today’s post will answer one particular network error on the Galaxy J3 — “Not registered on network.” Find out the troubleshooting steps that you can try to fix this issue on your end.

Problem: Galaxy J3 “Not registered on network” issue

Good evening.  My name is Alex. I have issues with my Samsung J3 phone. My Safaricom line is not working. It says `Not registered on Network.’  Kindly, assist. Kind Regards! 

Solution: There’s a number of possible reasons why this is happening. Tofix Galaxy J3 “Not registered on network” issue, follow our suggested troubleshooting steps below.

Forced reboot

First and foremost, you want to make sure that the error is not being caused by a simple bug. To do that, you can refresh the system by removing the battery. This usually clears up any temporary bugs and refresh the RAM, which may also be causing a slow down. After disconnecting the battery, wait for at least 10 seconds before reconnecting it.

Check the signal strength

Are you in a good location? Does your phone show at least 3 signal bars of your network? If you answer yes to both questions, proceed to the next troubleshooting step. Otherwise, “Not registered on network” error may be caused by poor coverage in your area. Relocate to a place where there’s strong signal to fix the problem.

Reset network settings

We assume you were able to previously connect to your carrier’s network and everything was working fine. If this is the case, it’s possible that there may be an unknown network bug behind the trouble. To fix it, reset your Galaxy J3’s network settings with these steps:

  1. Open Settings app.
  2. Tap General management.
  3. Tap Reset.
  4. Tap Reset Network settings.
  5. Tap RESET SETTINGS button to confirm.
  6. Restart your S8 and check for the problem.

Reseat SIM card

Some users were able to successfully fix network problems by simply disconnecting their SIM cards. If you haven’t tried this before, here’s what you need to do exactly:

  1. Turn off your phone.
  2. Remove the SIM card carefully.
  3. Wait for at least 10 seconds before turning the phone back on.
  4. Then, re-insert the SIM card and check for the problem.

Replace the SIM card

Before you heed this suggestion, we recommend that you further check by inserting your SIM card to another compatible phone. By compatible, we mean a phone that is actively registered to your current network and thus being able to use your SIM card without any issues.

If the second phone won’t show the “Not registered on network” error, that means that the problem is caused by something within your first phone. Continue troubleshooting it by following our suggestions below.

Check for bad third party app

In case one of the downloaded apps is to blame, you can boot the device to safe mode so you can observe it. On this mode, all third party apps will be suspended. So, if the network error won’t show on safe mode and you are able to use network services without problems, that’s a clear indicator of a bad app problem.

To restart your Galaxy J3 to safe mode:

  1. Turn the device off.
  2. Press and hold the Power key past the model name 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. Safe mode will display in the bottom left corner of the screen.
  7. Release the Volume down key when you see Safe Mode.
  8. Check for the problem.

To identify which of your apps is causing the trouble, you should boot the phone back to safe mode and follow these steps:

  1. Boot to safe mode.
  2. Check for the problem.
  3. Once you’ve confirmed that a third party app is to blame, you can start uninstalling apps individually. We suggest that you begin with the most recent ones you added.
  4. After you uninstall an app, restart the phone to normal mode and check for the problem.
  5. If your device is still problematic, repeat steps 1-4.

Factory reset

Network problems can also be a product of operating system glitch. If the issue remains at this  juncture, you must factory reset your device to get rid of possible software causes. This is the most that you can do in terms of doing software solutions. If the reason for “Not registered on network” error is software in nature, factory reset will most likely fix it. Here’s what you need to do:

  1. Create a backup of your data such as photos, videos, documents, etc.
  2. Turn off the device.
  3. Press and hold the Volume Up key and the Home 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.

Get help from your network operator

As your last resort, you must involve your network operator in fixing the problem. If nothing happens after wiping the device with factory reset, it’s possible that the reason for the problem is outside your control. Talk to your carrier to figure out the reason.


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