840 G4 WWAN SIMCARD PROBLEM

[mystic-sci]

every time i insert my sim card it does not show in my desktop i need help with this

[ub6424]

Hello @mystic-sci 

Sorry to hear that you are having problems ... I would like to help you.

Try ...

(1) Download and install / update

 ( If the installation fails continue with the next driver ... )

HP hs3210 HSPA+ Mobile Broadband Drivers

1.1.1.11 Rev.A

3.6 MB

Feb 2, 2017

Download

HP lt4120 Snapdragon X5 LTE Drivers

1.0.1.80 Rev.A

134.0 MB

Apr 23, 2020

Download

HP lt4132 Mobile Broadband Drivers

16.1803.10.1 Rev.A

17.4 MB

Mar 28, 2019

Download

(2) Restart Windows

(3) Test again ...

(4) Please report your results

[Paul_Tikkanen]

Hi, @mystic-sci 

The drivers you were given assume that your notebook has one of the required WWAN adapters installed.

Every Elitebook 840 G4 has a SIM card slot.

What 90% of them don't have is the expensive option of an installed WWAN card.

In order for the SIM card to work, your notebook has to have one of the supported WWAN adapters.

Go to the device manager.  Click to expand the Network adapters device manager category.

If none of the following adapters are listed there, your notebook cannot connect to a cellular network, and you would need to install one of those WWAN cards in order to do so.

HP lt4120 Qualcomm Snapdragon X5 LTE Mobile Broadband Module

HP lt4132 LTE/HSPA+ 4G Mobile Broadband Module

HP hs3210 WW HSPA+ with GPS Mobile Broadband

Chapter 3 of the service manual has these WWAN adapters and part numbers.

HP EliteBook 840 G4 Notebook PCHP EliteBook 848 G4 Notebook PC Maintenance and Service Guide

You must buy one with the HP part number or it will not work.

Make sure that your notebook has the WWAN antenna wires present before purchasing a WWAN card.