
Help and Support for
Samsung Galaxy S21 5G
Android 11.0
Choose a help topic
I can't make voice calls on my Samsung Galaxy S21 5G Android 11.0
Cause 11 of 12: Your SIM is faulty
You can check if your SIM is defective by inserting it in another phone.
Solution: Find the nearest Vodafone Shop to order a new SIM.
