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07-27-2022 04:50 PM
There is no such thing as a SIM card driver.
No doubt your notebook is missing the optional but required WWAN card which is needed to connect to the cellular network.
Every 840 G3 has a SIM card slot. What 90% of them don't have is the required WWAN card.
You need one of these three model WWAN cards in order to connect to the cellular service:
HP lt4120 LTE/EVDO/HSPA+ SnapdragonT X5 LTE Mobile Broadband Module 800870-001
HP hs31110 HSPA + Intel Mobile Broadband Module 822828-001
Check to make sure your notebook has the required WWAN antenna wires to connect to the WWAN card for reception.
Below is the link to the service manual:
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