How to handle poor contact of the physical SIM card?

1. Remove the SIM card, check if there is dust or foreign matter in the card slot, and clean it with a soft brush.

2. Adjust the position of the SIM card to ensure it is fully inserted into the card slot without looseness.

3. If the card slot is damaged, contact the device manufacturer for repair.

4. Test with another SIM card to rule out issues with the card itself.