E3372h-320 from Hi-link to stick mode

Hi !
I have an official huawei e3372h-320 usb modem that i'm trying to use in "stick mode" on RPi4 (Buster). I've tried a few things already:

  • booting into "recovery mode" (shorting pins with ground on plugging in) - this seems to work
  • running Balong's usbdloader and flasher on RPi4, but received no output to console
  • trying the same on a win10 pc, but it doesn't seem to recognize a COM port (even with drivers installed)

Any help would be appreciated.


there's a fallback mode that expose ports try this before usbloader (check pid and vid of your device, no need to short pins):

usb_modeswitch -v 0x12d1 -p 0x1f01 -n -I -M 55534243123456780000000000000011063000000100010000000000000000

also this can help:

vim /etc/usb_modeswitch.conf 


you can switch between operating system as long as you dont power cycle your usb device.

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Thank you for your suggestion. I have found another way of solving my problem in the meanwhile: RPi4 now connects over VPN (no need for open ports here) using said modem (with static IP) and there's no visible delay added to video stream. Will keep your method in mind if I decide to flip things over.

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