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20.1 Legacy Series / Re: LTE-USB-Stick (Huawei E3372h-320 Hilink) on OPNSense as LTE-Fallback
« on: September 23, 2020, 12:39:43 pm »
Hi,
I've also been struggling with using an E3372h-320 for AT commands. First of all I had a lot of trouble getting it into a mode where I could even send AT commands (I'm using Linux so probably different steps, but in the end I had to disable the usb_storage kernel module and then I could use usb_modeswitch as normal to switch it).
After that I found that it doesn't support almost any AT commands. The only ones that I was able to run without errors were ATI (which displays version information) and other related commands that display a subset of that information.
It's possible that I was doing something wrong, but I've been able to use exactly the same commands on older E3372 modems with no issues so it seems unlikely. Also I found that this website which reports that they also couldn't get an E3372h-320 to run any AT commands: https://en.avm.de/service/fritzbox/fritzbox-7490/knowledge-base/publication/show/120_Cannot-access-the-internet-with-a-mobile-broadband-dongle/
So I would recommend trying to get your hands on an older E3372, but if anyone does find a way to run the full set of AT commands on the E3372h-320 I'd love to hear about it.
I've also been struggling with using an E3372h-320 for AT commands. First of all I had a lot of trouble getting it into a mode where I could even send AT commands (I'm using Linux so probably different steps, but in the end I had to disable the usb_storage kernel module and then I could use usb_modeswitch as normal to switch it).
After that I found that it doesn't support almost any AT commands. The only ones that I was able to run without errors were ATI (which displays version information) and other related commands that display a subset of that information.
It's possible that I was doing something wrong, but I've been able to use exactly the same commands on older E3372 modems with no issues so it seems unlikely. Also I found that this website which reports that they also couldn't get an E3372h-320 to run any AT commands: https://en.avm.de/service/fritzbox/fritzbox-7490/knowledge-base/publication/show/120_Cannot-access-the-internet-with-a-mobile-broadband-dongle/
So I would recommend trying to get your hands on an older E3372, but if anyone does find a way to run the full set of AT commands on the E3372h-320 I'd love to hear about it.