First solution: Reboot your phone (soft reset). Random glitches can cause certain errors to occur on your phone. The SIM card reader or software responsible for reading the SIM card might be ...

Is your iPhone is telling you it doesn't have a SIM card available? Here are some fast and easy things to try before calling your carrier or the Apple Store.

You can't make calls if you get the "SIM not provisioned MM#2" error, but it's easy to fix.

Galaxy Note10+ No SIM card detected fix #6: Reset network settings Network functions like SMS and MMS may sometimes work erratically or not at all if there’s incorrect network settings.

This will allow you to start fresh with your Network Settings and hopefully fix any errors with sim card recognition associated with them.

A SIM card is a small chip you insert into your phone to connect to a cellular network. Provisioning simply means activating or configuring the SIM so it can access the network’s services.

Contact your telecom provider: Call your network provider to check for account issues. Also, you may request a new SIM card with your existing number. How to fix the “No SIM” issue for iPhones ...

The SIM card is a crucial component of your iPhone, connecting you to your carrier’s mobile network. It stores vital information such as your phone number, billing details, and cellular provider.

Are you getting a "mobile network not available" error message? Here's what's going on, and ways you can potentially get cellular working.