Scratches on the SIM's integrated circuit or a bent SIM tray. Software Glitches:
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"Hi, I am getting an 'Invalid SIM Card' error on my [Phone Model]. I have already restarted the phone. Can you please verify that my SIM card's ICCID is paired correctly with my device's IMEI in your billing system? Also, please check if my IMEI is on the 'Device Management Database' as a compatible 4G/5G device. If it is, please push a new OTA (Over the Air) activation signal to my phone." Scratches on the SIM's integrated circuit or a bent SIM tray
In terms of specific error messages, "invalid SIM card" can be caused by a variety of factors, including: Can you please verify that my SIM card's
US Cellular is unique—they require CDMA-less provisioning for some newer Androids (like newer Samsungs). Call *611 and ask them to "re-provision the SIM on the backend."
Report: "Invalid SIM Card" Errors on UScellular Devices An "Invalid SIM Card" error on a UScellular device indicates that the phone is unable to communicate with the SIM card or verify it with the network. This prevents the device from making calls, sending text messages, or using cellular data. 1. Common Causes The issue typically stems from one of three categories:
Dust, oils, or oxidation on the gold contact pins can block the electrical connection.