My device does not recognize SIM

If your phone doesn't detect your SIM or eSIM — showing "No SIM", "Invalid SIM", or no signal — here's how to troubleshoot.

For physical SIMs

• Remove the SIM card and reinsert it firmly — make sure it's properly seated
• Check the SIM tray isn't bent or damaged
• Try the SIM in a different slot if your device has multiple
• Clean the SIM contacts gently with a dry cloth
• Restart the device after reinserting

For eSIMs

• Check Settings → Cellular (iPhone) or SIM card manager (Android) to confirm the eSIM profile is still installed
• If the profile is missing, your eSIM may have been deleted — see My eSIM was deleted — can I reinstall it?
• Toggle the eSIM line off and back on in settings, then restart the device

General steps for both

• Update your device software — carrier settings updates can fix SIM recognition issues
• Reset network settings (this won't delete data but will clear Wi-Fi passwords and VPN settings)
• Try the SIM in a different device to check if the issue is with the SIM or the device

If none of these work, contact support with your device model and ICCID.

This article doesn't cover:

eSIM deleted →My eSIM was deleted — can I reinstall it?

eSIM won't activate →My eSIM is not activating — troubleshooting guide