Windows 10: Dell latitude e6440 cellular data connection issue

I have dell latitude e6440 model I am trying to use sim card at my device but there no option showing for cellular and fir that I tried install a sierra wireless Inc 4g lte mobile broadband card adapter but they can't work properly

:)

 

problema con LATITUDE E6440

BUENAS.

SU APOYO CON PROBLEMA DE BLUETOOTH DE MI LATITUDE E6440 (AUN NO PUEDO CONFIRMAR SI TIENE O NO TIENE ESTE DISPOSITIVO) YA QUE POR MAS QUE RENUEVO CONTROLADORES Y ANALIZO EL EQUIPO NO PUEDO ACTIVAR EL BLUETOOTH NI LA CAMARA WEB.

¿ALGUIEN TUVO ALGUN PROBLEMA SIMILAR CON EL BLUETOOTH Y LA CAMARA WEB?

¿LO PUDO RESOLVER?



SALUDOS.

 

Cellular/SIM connection not available/disappearing

Hi,

A faulty cellular adapter is one of the possible reasons why the cellular connection is disappearing from the laptop. A disabled adapter in the Network Connections Settings can also be the cause of this issue. We suggest you to enable the cellular connection
in the Network Connections settings. You can follow the steps below:

• Press the Windows key.
• Type View Network Connections.
• Press the Enter key.
• Right-click on the cellular adapter and click Enable.

Should you need further assistance, don't hesitate to get back to us.

 

No drive found on my internal hard disk on Dell Latitude E5430.

Hello,My laptop (Dell Latitude E5430) was working perfectly till yesterday. But yesterday night, it restarted on its own and ever since, it's stuck at this screen:



Also, inside the BIOS, no UEFI bootable hard disk drive is being listed.



The UEFI flash disk option shown above is that of my bootable pen drive with Windows 10 installation copy.I googled this issue a bit and the results were as follows:

1. one thread suggested that I should run Dell's internal diagnostics to see if there anything wrong with hard disk. I did that but every component, including the hard disk one, passed these internal test.
   
   
2. a second thread suggested that I should try to remove and reseat the hard disk. I did that following Dell's user manual.
3. another thread suggested that I should reinstall my windows 10 afresh. But when I try to do so, the windows installation wizard doesn't list any drive in the hard disk. It's as if it doesn't detect hard disk at all.
   
   

In a nutshell, while the hard disk is being detected, but none of its drives is. However, the hard disk consisted of 3 drives:

1. C: with the windows' and applications' installations,
2. D: with all of my data,
3. E: which was recovery drive.

Any troubleshooting suggestions?I'm sorry I am not able to help you guys with any logs and stuff because I don't know how to get them when I can't get my Windows to boot. I'm not even sure if this is the correct section where I should be posting this thread.. I'm just so confused right now. *cry

A few weeks ago, I had upgraded (not fresh installation) from windows 10 version 1607 to 20H2. The version 1607 installation was a clean one (from scratch, after formatting the hard disk and creating new partitions).