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I am experiencing an issue with the SIM module on my HP EliteBook 840 G4 laptop. The cellular module (lt4120 Snapdragon X5 LTE) stops working as soon as I insert a SIM card from the Israeli mobile provider Pelephone.

Here are the system details:

  • Laptop model: HP EliteBook 840 G4

  • SIM module: lt4120 Snapdragon X5 LTE

  • Operating System: Windows 10 Pro 64-bit

  • Driver Version: 10.0.19041.4842

The SIM card is recognized briefly and then the modem becomes non-functional. This issue only occurs with SIM cards from Pelephone; other providers do not seem to cause the same problem.

I would appreciate your assistance in resolving this issue or providing guidance on compatibility or firmware updates.

Thank you in advance for your support.

Best regards,

ran.karasenti

† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.