Nay, in 20 years of using mobile phones I only had a problematic one.
After several years of use, it developed a software fault.
Sounds like you have no signal.
Check the bars top right of your screen, no bars or a cross over them means no signal.
Mine have been very creative in malfunctioning. The current one refuses to accept messages within any reasonable time frame. I've spent a couple of days trying to activate a Signal account; by the time the phone registers the message containing the code, the app had long since stopped working.
Suddenly refusing to charge is a staple which killed at least three prematurely.
Randomly switching off and resetting then demanding a SIM Pin number.
Refusing to accept a SIM unlock number even though it's the one printed on the SIM.
Randomly insisting there is no SIM card installed...
I very reluctantly got my first "smart" phone five years ago and they seem to die very quickly. I didn't realise they need to be kept in one place, packed in foam.