I have a ZTE Mobley device, and it worked well with ASUS stock firmware as a USB modem.
I now have a TP-Link Archer C7 v4 and installed OpenWrt 18.06.1.
Currently it does not show any option for USB.
I tried following some instructions online by installing packaged kmod-usb-*, they are installed but I still can't configure the USB connection. Maybe because I need to activate the packages, I don't know.
Could someone help me with some guidance? Am I supposed to do all that via SSH, or can be done via LuCI interface?
Your usb 3g dongle must be listed in usb-json file, its vid and pid
Is it even recognized by linux? What is new in /dev if you plug it in?
Do you have /etc/chat?/3g.chat present?
Would you mind sharing the commands I need to issue to get the info and change the usb-json file? Should I do it via SSH or it can be done within LuCI?
That .json file is in /etc
Copy it to pc and with good editor search if vid pid of your usb stick is there
Put usb stick in windows machine and in manager have a look at vid pid
It's easier to switch if you use mwan3. You can set it up to use the modem automatically if there is no other internet connection. It can be a bit hard to set up the first time, though. https://openwrt.org/docs/guide-user/network/wan/multiwan/mwan3
No, you need to add the interface manually as described on the wiki page. If that doesn't work then you need to check that the USB device has been recognized. There is some troubleshooting advice on the same page and some more here: https://openwrt.org/docs/guide-user/storage/usb-installing
It's a waste of time to start with the most complex troubleshooting methods before he's tried to set it up using the drivers that will work out of the box at least 90% of the time.
Not when the try and see works 90% of the time and takes almost no time to finish, compared to starting with a time consuming troubleshooting procedure that will ultimately lead to the same solution 90% of the time. It's simple math.
if it does not work 100% but only 99,999999% it is useless
Igorjrr has spent already too much time and if you would insist to continuethe way as now he will spend even more time without sucess
He is so desperate that he already open thread over here
No need to argue about methods. The 3gdongle guide looks a bit outdated, as noted. It's also very long and tries to cover too much IMHO. I'd recommend starting with one of the LTE guides instead. For example: https://openwrt.org/docs/guide-user/network/wan/wwan/ltedongle
And do note the tip about cat /sys/kernel/debug/usb/devices
Post the output and we can tell exactly which package is missing, if any
Most mobile devices (both phones and dongles) uses rndis for USB tethering, and neither it nor the second two most used drivers (mbim and qmi) are installed so obviously it most likely won't work in the current state, no matter how much troubleshooting you do. It's not my time being wasted, though, so feel free to use any method you like.