Android smartphones are powered by a bunch of background services that keep the phone running as it should. However, some of these services deal with cellular connectivity and need to be registered with the carrier’s network before they can be properly used.
In this article, we’re talking about the IMS registration status not registered error, its causes and what you can do to fix the problem.
What causes this error?
IMS stands for IP Multimedia Subsystem and the service allows your Android smartphone to work with the carrier-provided communications app for better cellular connectivity. There are several reasons why you might see this error show up on your phone:
- SIM card isn’t connected properly.
- Incorrect network settings.
- Carrier outage.
- Outdated phone software.
Also read: Sim not provisioned MM#2: 10 Fixes
How to fix this error?
Here are six fixes you can try out.
Restart your phone
One of the first things you should do when troubleshooting issues like this is to restart your phone. Restarting your phone can help freshen things up, which can, in turn, resolve a bunch of seemingly random issues that pop up out of nowhere.
Reinsert the SIM
Another possible cause of the issues is if your SIM is improperly inserted or not making proper contact with the module inside your phone. Switching your phone off, taking out the SIM and reinserting it again can help solve this.

Also read: Why is AT&T broadband light red?
Use the Airplane mode
Enabling aeroplane mode and then disabling it effectively restarts all the network equipment inside your phone, including your WiFi, Bluetooth and, of course, the network modules. It’s just like soft rebooting your phone and can help solve this problem.
Reset your phone’s network settings
Incorrect network settings can cause all sorts of problems, including SIM cards not being detected or malfunctioning. Doing this resets your WiFi networks, Bluetooth connections, cellular and even VPN settings.
Check out our detailed guide on how to reset network settings what doing so can do here.
Check if your SIM card is enabled
Some phones have an option that can be used to enable or disable SIM cards in the phone. Check your settings to ensure that your SIM isn’t disabled.

- Head over to your phone’s settings and tap on Network & Internet.
- Tap SIM Cards.
- Make sure both your SIM slots are enabled.
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Set the network mode to auto
Open your phone’s settings and follow the steps mentioned below.

- Head over to your phone’s settings and tap on Network & Internet.
- Tap on the SIM that’s causing problems.
- Tap Advanced.

- Tap Preferred network type. Make sure that the recommended network type is selected.
- Also ensure that the Automatically select network toggle is enabled.
Also read: How to find SIM card number on iPhone?
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