Did you get an error message on your Android phone that said "Invalid SIM card" or "SIM card not detected"? Despite the fact that you have a SIM card in your phone, it nevertheless displays the message "no SIM card."

It's a startling experience, because you have no idea why an error notice has been shown. It's understandable that you're feeling this way, because it's a real pain.
This problem has been reported by a large number of Android users who are eager to learn what caused it and how to avoid it in the future.

"Invalid SIM Card" Error: What Is It?
If you get an invalid SIM card error, either your phone doesn't have a SIM card or the connection is bad or the SIM card is loose. Regardless of why you're getting this error message, your SIM card and tray are connected.
In other words, you need to figure out why your Android is displaying this error message in the first place.

Why do you have “Invalid SIM Card Error on your Phone ?
Why does your Android screen display such an error message?
Read more:
https://ict-domain365.com/2022/03/20/how-to-fix-an-invalid-sim-card-on-android/

Nice one
Very informative

AREWAELENU:
Nice one
Very informative

Thank you