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- can sim be worked in laptop 840 g6

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12-06-2025 06:43 AM
A SIM card won't work without the optional WWAN adapter that is needed in order to connect to a cellular service.
That was an expensive option and very few 840 g6's came with a WWAN adapter.
In order to connect to a cellular network your notebook must have one of the following WWAN adapters present and working in the Windows device manager under the Network Adapters device manager category.
Intel XMM 7360 LTE
Intel XMM 7560 LTE
Intel XMM 7262 LTE-
I am sure you will find that your notebook does not have any of those devices.
12-06-2025 09:20 AM
Below is the link to the service manual for your notebook.
Maintenance and Service Guide HP EliteBook 840 G6 Notebook PCHP EliteBook 846 G6 Notebook PC
Chapter 3 has the list of the 3 supported WWAN adapters with their HP part numbers.
You can find, buy and install one of those adapters but before you do, open up your notebook and make sure the antenna wires are present to connect to the WWAN card.
The WWAN card removal and replacement procedure can be found in chapter 5.