How to Fix No SIM Card, Invalid SIM, Or SIM Card Failure Error on Android Phone
This video will show you how to fix No SIM Card, invalid SIM, and SIM card failure error on Samsung Galaxy A12.
Method 1. Reboot Your Device.
Method 2. Re-Insert SIM Card.
Method 3. Switch to Supported Network Operator
Method 4. Reset Network Settings.
Method 5. Update Software.
Method 6. Replace the SIM card.
