How do I fix IMS registration Not registered?

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Does your phone say IMS Registration Not Registered whenever you try to make a call or drop someone a text?

Fixing errors like these is more difficult because your network provider is involved, and this complicates things further. You can still try some methods to fix this problem with your mobile network, though.

Causes of the error IMS Registration Not Registered

When you encounter this error, you are unable to contact anyone, which is a very frustrating situation. And if you’re wondering why your phone says it’s not registered on the network, here are the most common causes:

  • This type of error can occur when a new update does not support the device. If the error appears after the update, you must wait for an official fix.
  • Another source of the error message is the IMEI number.
  • When you switch to a new SIM card, your device may fail to maintain an update with a provider, resulting in the error popups.
  • When your Android operating system or phone’s firmware is out of date.
  • If the SIM card is damaged or unplugged.
  • When your carrier is experiencing a service outage.
  • If you haven’t chosen a carrier in your phone’s settings.


How to fix IMS Registration: Not Registered on Network

In the majority of cases, Android devices are unable to connect to a network because they are not registered with the service provider. However, here are a few fixes that can help if the issue is not the registration with the service provider.

Solution 1

  • Replace the SIM card in the phone.
  • Navigate to the menu bar and select Settings.
  • Locate and update the Software Update screen.
  • At this point, restart the phone and the error should be resolved.

This method is mostly applicable to Samsung Galaxy phones. Please carefully follow the steps below and, if they do not yield a favorable result the first time, repeat them.

Solution 2

  • Turn off your phone by simultaneously pressing the Power and Home buttons.
  • Wait 2 minutes after the phone has been completely turned off.
  • Remove the phone’s battery and SIM card after 2 minutes.
  • Press the Power and Home buttons ten times more.
  • Hold down the Power and Home buttons for 1 to 3 minutes to drain any remaining static energy on the phone.
  • Insert the SIM card and battery after that.
  • Turn on your phone.
  • Remove and re-insert the SIM card 5 times while the device is turned on (make sure the SIM card remains into the phone the 5th time)
  • You will be prompted to restart your phone.
  • Finally, your device will boot without any errors.

Solution 3

The main reason for the Galaxy S7 and Galaxy S7 Edge returning the “No Service” or “Not Registered on Network” error is that the radio signal has been turned off. When there is a problem with the WiFi or GPS, the signal will sometimes turn off automatically.

Follow these steps:

  • Go to the dial pad and enter (*#*#4636#*#*) NOTE: There is no need to press the send button; it will automatically prompt you for the Service mode.
  • Enter Service mode.
  • Choose “Device information” or “Phone information.”
  • Choose “Run Ping test.”
  • When you click the “Turn Radio Off” button, the Galaxy will restart.
  • If necessary, select Restart.

Solution 4

Follow the steps below:

Go to Settings > More Networks > Mobile Networks > Network Mode > select GSM only

Select Network Operators by pressing the back button. A search will be performed, and a list will be generated with all of the available Network Operators broadcasting GSM signals in your area.

You can either enter the name of the operator you want to use (the one on the SIM card you’re using) or leave it at Select Automatically. Your phone should display the message “Registered on Network.”

Solution 5

Update your APN settings. To do so, go to Wireless and Networks > Mobile Network > Access Point Names > Menu, left button from the home key > New > now enter the necessary APN settings for your carrier.

If you are using T-Mobile, enter this:

  • “Name: T-MobileAPN: epc.tmobile. com if you have an LTE Device, you should use: fast.tmobile. com
  • Proxy: <leave in=”” blank=””>
  • Port: <leave in=”” blank=””>
  • Username: <leave in=”” blank=””>
  • Password: <leave in=”” blank=””>
  • Server: <leave in=”” blank=””>
  • MMSC: http: //mms.msg.eng.t-mobile. com/mms/wapenc
  • MMS proxy: <leave in=”” blank=””>
  • MMS port:<leave in=”” blank=””>
  • MMS protocol: WAP 2.0
  • MCC: 310
  • MNC: 260
  • Authentication type: <not set=””>
  • APN type: <leave in=”” blank=””> OR Internet+MMS”

If you are using AT&T enter this:

  • “Name: AT&TAPN: wap.cingular
  • Proxy: <leave in=”” blank=””>
  • Port: <leave in=”” blank=””>
  • Username: wap@cingulargprs. com
  • Password: cingular1
  • Server: <leave in=”” blank=””>
  • MMSC: http://mmsc.cingular. com
  • MMS proxy: wireless.cingular. com
  • MMS port: 80
  • MCC: 310
  • MNC: 410
  • Authentication type: <leave in=”” blank=””>
  • APN type: default,supl,mms OR Internet
  • APN Protocol: Leave it on the Default one”

Solution 6

Not Registered on Network can also occur if the SIM card is not properly inserted. The steps below also apply to Samsung Galaxy phones.

  • Navigate to the Mobile Network submenu in the Settings menu.
  • While in this menu, hold down the Power Button and the Home key until the device shuts down.
  • Once the phone has been turned off, remove the battery and hold down the Power and Home buttons for 10 seconds.
  • After that, hold down the Power and Home buttons for 1-2 minutes to drain the phone’s remaining static energy.
  • Now, insert the battery and SIM card and turn on the phone.
  • Do not reattach the back cover.
  • Insert and remove the SIM card three times.
  • When prompted, restart the phone.
  • Finally, your device should boot up without any errors.

Solution 7

If, after using all of the solutions listed above, you are still experiencing the same problem, you can seek assistance from your network provider. They will only be able to assist if the problem originates from their end.

In many cases, the problem stems from within the organization, and at that point, you simply have to sit back and wait until the problem is handled. The problem is most commonly caused by SIM card damage, which occurs when the card is scratched while being swapped between many mobile phones.

It is necessary to replace the old SIM with a new one if this is your situation.


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