Android Phone Is Not Reading the SIM Card
A safe troubleshooting sequence for an Android phone that says No SIM, Invalid SIM or Emergency Calls Only.
SIM errors can come from a damaged SIM, tray issues, network settings or account provisioning. The exact message is useful when diagnosing the cause.
Reseat and test the SIM
Power off the phone if recommended by the manufacturer, reseat the SIM carefully and check for visible damage. Test a known-working SIM or test your SIM in another compatible phone.
Review settings
Restart the phone, check that the SIM is enabled in settings, and install supported system updates. Avoid factory resetting before backing up important data.
Contact the carrier
Ask the carrier to verify account status, SIM activation and network issues. If multiple SIMs fail, a hardware inspection may be necessary.
Explore FlareClem
Review available services and requirements before placing an order. Only request services for devices you own or are authorised to manage.