DW5816e / Sierra EM7430: Not detected

[aufannada]

I bought WWAN DW5816e aka Sierra Wireless EM7430 for my laptop Dell Latitude E7270.

After I install it and install the driver, the EM7430 can work well on Windows and Linux.

But, when I used on MacOS High Sierra, EM7430 can not detected.

 

I have tried to follow the methods written on this forum but still can't use the WWAN, because not detected.

Hope you can help me.

I include debug files my laptop below.

 

In the E/C/k/O folder there is Legacy_Sierra_QMI_10.13.kext that I use after I have successfully changed USBCOMP=8 using Ubuntu (USBCOMP=14 does not support for EM7430).

 

COMMANDS:

 

sudo ls -la /dev/cdc*
sudo dmesg | grep cdc

 

sudo apt-get install perl
sudo apt-get install libuuid-tiny-perl
sudo apt-get install libipc-shareable-perl
sudo apt-get install modem-manager-gui

 

sudo perl swi_setusbcomp.pl --device=/dev/cdc-wdm1 --usbcomp=8

 

debug_30345.zip

[Hervé]

If the module is not detected, then you have a problem at USB level; you need to make sure all your ports, including the internal ones are fully enabled; you'll then see the module listed under the USB section of System Information (SysProfiler).

 

[aufannada]

Ok Hervé, I see. That's why I asked for help because my WWAN module wasn't detected in the USB section of System Information (SysProfiler).

 

I have done several ways, and one of them is using Legacy_Sierra_QMI_10.13.kext. But until now, the module has not been detected yet in the system. Please help.

[Hervé]

WWAN modules are USB-based. Until you get all your ports working, including the internal ones, nothing you could try to get the WWAN working will succeed. Once you see the module listed under SysProfiler->USB, you'll know it's detected and available for tuning. Consult the existing E7470 guides/threads/posts to get all your USB ports working.

[aufannada]

Okay @Hervé now the module has been detected and seen. What to do next because I can't add it to the network.

 

     

 

 

[Hervé]

According to @influenist, this WWAN module works with the kext he posted here.

[aufannada]

Thank you for your instructions @Hervé but after I used that kext, my WWAN DW5816e / EM7430 still can't be used. There is no change from before.

[aufannada]

But there has been little progress. The WWAN menu on System Information -> Network -> WWAN has appeared WWAN Information after I have changed the kext in the Product ID and Vendor ID fields with the contents 0x81cc and 0x413c (Dell Inc.)

 

But until now it still can't work. Any idea?

   

 

 

 

[Hervé]

From past experience, Modem Software + Network Name were reported as "Unknown" when no SIM card was inserted.

[aufannada]

Of course I have my SIM card inserted.

I can use it when I boot using Windows or Linux. But if I use Mac I can't use it.