HRESULT 0x80548202 (E_MBN_BAD_SIM): meaning and diagnosis

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The mobile-broadband device reports that the inserted SIM is invalid.

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E_MBN_CONTEXT_NOT_ACTIVATED	E_MBN_DATA_CLASS_NOT_AVAILABLE

E_MBN_BAD_SIM

E_MBN_BAD_SIM is a Windows Mobile Broadband (MBN) HRESULT. It indicates that the modem cannot use the inserted SIM for the requested Mobile Broadband operation.

What to check

Reseat the SIM and confirm that the device detects it consistently after a refresh or restart.
Check whether the SIM, subscription, and device are provisioned and compatible with the carrier.
Do not treat this as an APN or password failure until the SIM itself has been accepted by the modem.

Microsoft: MBN error codes

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