Activation Codes and Methods, Hardware Details, Sniffing
softice
Posts: 6
Joined: 15 Dec 2018, 19:37

Re: E3372h-320 (update 2020 version of E3372) automatically switches itself into ethernet mode

Post by softice » 31 May 2021, 13:55

Hi Josh,

Appreciate the effort. Yes, also no issues here with newer kernels, e.g. on a RPi with raspbian.
But my embedded device runs on 3.4.11, and for several reasons, I can't change the kernel :(


Hi ykl,

No, I did not find a fix despite having spent many hours on it. Will update in here if I find something. Please do the same.

Thanks.

murilopontes
Posts: 2
Joined: 03 Jul 2014, 23:13
Location: Recife, PE, Brazil

Re: E3372h-320 (update 2020 version of E3372) automatically switches itself into ethernet mode

Post by murilopontes » 25 Jun 2021, 01:16

Hi, thanks for insights.
I can to put E3372h-320 in serial mode (/dev/ttyUSB0,1,2) on OpenWRT 21.02rc3

I put this on /etc/rc.local

Code: Select all

echo "12d1:1f01:s" > /sys/module/usb_storage/parameters/quirks
usbreset   12d1:1f01
usbreset   12d1:14db
And create a new /etc/usb-mode.json

Code: Select all

{
        "messages" : [
                "55534243123456780000000000000011063000000100010000000000000000",
        ],
        "devices" : {
                "12d1:1f01": {
                        "*": {
                                "t_vendor": 4817,
                                "t_product": [ 5471 ],
                                "msg": [ 0 ]
                        }
                }
        }
}
I reconnect E3372h-320 on usb port, and configure interface as proto-3g, fill apn, username and password and everything works as expected.
Double NAT never more!

LOM
Posts: 1383
Joined: 11 Jul 2012, 15:14
Location: Koh Samui, TH

Re: E3372h-320 (update 2020 version of E3372) automatically switches itself into ethernet mode

Post by LOM » 25 Jun 2021, 03:22

murilopontes wrote: 25 Jun 2021, 01:16 Hi, thanks for insights.
I can to put E3372h-320 in serial mode (/dev/ttyUSB0,1,2) on OpenWRT 21.02rc3
snip
murilopontes wrote: 25 Jun 2021, 01:16 Double NAT never more!
It is rare to get a public IP address from a mobile internet provider and that is equally true for a dialup connection.
Check what IP address you get, I think you are still NAT'ed.
You will never be able to get the full LTE CAT4 speed through the modem if you use it in ppp serial dialup mode.

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