Galaxy Z fold 3 problems

[JasonKu1ik]

After a new update of software of my phone,  it's became loose a sim. After resetting a phone, the sim is working.  Some time has passed,  the phone says,  the sim doesn't in phone.  It looses. After restart,  everything is OK. But there wasn't such a mistake before I update today may phone.  How to solve this case?

[christianlowe]

I had a no sim inserted issue on the fold 3 but not after an update like yourself

I did try to book an appointment at one of the samsung experience for diagnostics/repair but having to wait for 10 days for an appointment with no sim card working I opted to use the esim option with my provider and I've had no problems since doing so

Maybe try a new sim card with your provider going down the route of repair or having it looked at?