LTE Modem Assistance needed


#1

Hello! I am in the United States and I have installed the Quectel QC20 Mini-PCI Modem in my Omnia. I can’t seem to get it correctly configured/recognized. I intend to use it with a SIM from Verizon on their LTE network. I know the SIM is good, as it works in another device. I tried looking at the documentation, but I still can’t get it working quite yet. Could someone please assist me? Many Thanks! -Rob


#2
  • did you follow the official tutorial?
    Step 2: did you see /dev/ttyUSB2 listed?
  • try connecting to an existing internet connection and run the updater, i had to update the firmware to get LTE working.

#3

Yes, I did try to follow the instructions. Here is what I see when I query with dmseg | grep tty:

Qualcomm USB Modem now attached to ttyUSB0
Qualcomm USB Modem now attached to ttyUSB1
Qualcomm USB Modem now attached to ttyUSB2
Qualcomm USB Modem now attached to ttyUSB3

So I don’t understand why I am seeing so many instances of the same device.

As far as my updates go, I believe the Omnia itself is current, and I don’t know how to obtain/install the latest firmware for the QC20 Mini-PCI card.

Thanks, any other assistance would be greatly appreciated.

-Rob


#4

Put a plastic tape on the SIM card (sometimes the contact is not good so the tape helps).
Install and try kmod-usb-net-qmi-wwan & luci-proto-qmi (go to interfaces and change protocol for the Lte interface to qmi cellular, device /dev/cdc-wdm0, insert your APN, and authentication type NONE) rather than what the official tutorial proposes


#5

Could you please detail the steps you took to update the firmware on this device? Thank you very much.


#6

connect the router to an existing/working internet connection and access the foris webinterface from there you can check for updates.


#7

I did that, and switched to the RC branch, so I am now on 3.11 and that did get the router working. I am talking about the firmware on the mini pci card itself.