[Solved] Modem Huawei E3372-607 cdc_ether Error, Device Not Working Properly

I'm want to using 4g modem for internet connection,
I research it for 3 day, I'm using openwrt snapshot for it in Archer C7v5, last I installed kmod-ath10k, it's detected in logread, but it's loade with error like this :

ed Dec 12 07:06:13 2018 kern.info kernel: [   20.502657] cdc_ether 1-1.3:1.0 eth1: register 'cdc_ether' at usb-ehci-platform.0-1.3, CDC Ethernet Device, 0c:5b:8f:27:9a:64
Wed Dec 12 07:06:13 2018 kern.info kernel: [   20.514577] usbcore: registered new interface driver cdc_ether
Wed Dec 12 07:06:13 2018 kern.info kernel: [   20.654382] PPP generic driver version 2.4.2
Wed Dec 12 07:06:13 2018 kern.info kernel: [   20.662471] NET: Registered protocol family 24
Wed Dec 12 07:06:13 2018 kern.info kernel: [   20.671461] usbcore: registered new interface driver rndis_host
Wed Dec 12 07:06:13 2018 kern.info kernel: [   20.718483] pci 0000:00:00.0: using irq 40 for pin 1
Wed Dec 12 07:06:13 2018 kern.warn kernel: [   20.735959] PCI: Enabling device 0000:00:00.0 (0000 -> 0002)
Wed Dec 12 07:06:13 2018 kern.info kernel: [   20.742001] ath10k_pci 0000:00:00.0: pci irq legacy oper_irq_mode 1 irq_mode 0 reset_mode 0
Wed Dec 12 07:06:13 2018 kern.warn kernel: [   21.019351] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/pre-cal-pci-0000:00:00.0.bin failed with error -2
Wed Dec 12 07:06:13 2018 kern.warn kernel: [   21.030438] ath10k_pci 0000:00:00.0: Falling back to user helper
Wed Dec 12 07:06:13 2018 kern.info kernel: [   22.062193] cdc_ether 1-1.3:1.0 eth1: unregister 'cdc_ether' usb-ehci-platform.0-1.3, CDC Ethernet Device

it's because
can anyone help me?

That's normal behaviour, the kernel modules tries several different firmware ABIs before settling on the installed one, this shows that it finally found the correct one:

ath10k_pci 0000:00:00.0: firmware ver 10.1-ct-8x-__fW-021-e2174c5 api 2 features wmi-10.x,has-wmi-mgmt-tx,mfp crc32 83fdb9cc
ath10k_pci 0000:00:00.0: board_file api 1 bmi_id N/A crc32 bebc7c08
ath10k_pci 0000:00:00.0: htt-ver 2.1 wmi-op 2 htt-op 2 cal file max-sta 128 raw 0 hwcrypto 1

but the modem is not listed in /dev/cdm-wdm* or /dev/ttyUSB*

how to fix that?

ath10k covers the wlan cards, it has nothing to do with modems.

so my question is incorrect :man_facepalming:

The driver does not open anything in /dev. Instead it creates an Ethernet-like network interface in the kernel. While the modem is plugged in, you should see an eth1 device with ifconfig -a.

You can then attach that device as your WAN network in /etc/config/network.

thanks for your information...

to @all
thanks for your support, it's solved...
It's dump bug actually,
I have to first login it to web with PC/Linux/Mac to enabled support RNDIS...

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