Thanks all for the help.
I have it up and running! With the 4g and wireless both working.
I had some issues with the latest version of OpenWrt in which it wouldnt update all the packages and kept failing on opkg install luci-proto-qmi this was probably due to me being new and not knowing how to troubleshoot.
Here's what I did to get it all working (steps followed from this post)
- I reflashed an older version of OpenWrt (v21.02.2) for the v5 of my router.
- Downloaded this package https://raw.githubusercontent.com/mrhaav/openwrt/master/21.02.1/uqmi_2021-12-22-0.4_mipsel_24kc.ipk
- Uploaded and installed it using luci
- Installed Putty and connected as @root to the router
- ran
opkg update - ran
opkg install usb-modeswitch kmod-mii kmod-usb-net kmod-usb-wdm kmod-usb-net-qmi-wwan - ran
opkg install luci-proto-qmi - Created a new interface and set the type to QMI Cellular and the /dev/cdc-wdm0 device.
- Setup my APN settings (just
three.co.uk, everything else blank) - Applied settings and rebooted.
Thanks again to @fsufyan for his post.
I have to say, for someone who only heard about OpenWrt a week ago, it's been pretty straight forward to get to grips with and the UI is great!