There are a few reasons why your iPhone SE 2020 might not be showing your ICCID. The purpose of the ICCID on iPhone is to identify the SIM card. It is a unique 19- or 20-digit number that is printed on the SIM card and stored in its memory. The ICCID is used by mobile network operators (MNOs) to identify and connect your iPhone to their network.
- Your SIM card is not inserted properly. Make sure that your SIM card is inserted all the way into the SIM card tray. You can check the Apple support documentation for instructions on how to insert your SIM card.
- Your SIM card is damaged. If your SIM card is damaged, it may not be able to read the ICCID number. Try inserting a different SIM card to see if that works.
- Your iPhone is not activated. If your iPhone is not activated, you will not be able to see your ICCID number. You can activate your iPhone by contacting your carrier.
- Your iPhone is running a beta version of iOS. Beta versions of iOS are not always stable and may cause problems with certain features, including the ability to see the ICCID number. If you are running a beta version of iOS, try updating to the latest stable version.