Teltonika RUT240 virgin firmware?

I’ve been trying to build an OpenWrt stock, unbranded firmware for the Teltonika RUT240 using their ‘FLOSS’ source code made available via their GPL wiki page on the products website website - https://wiki.teltonika.lt/view/GPL

Does anyone know if there is already a generic ar71xxx firmware floating around for these devices? and if not, how can I completely rebrand the firmware, as well as stripping the teltonika chaos chalmer branch packages?

Does anyone know if there is already a generic ar71xxx firmware floating around for these devices?

I don't know about that, but you would need to add support for the device, (https://openwrt.org/docs/guide-developer/add.new.device) then build the ar71xxx platform image.

how can I completely rebrand the firmware, as well as stripping the teltonika chaos chalmer branch packages?

I think you should be able to build a working image from the Teltonika GPL sources, except some of their packages are located on internal Teltonika servers, such as the customized LuCI.

You might be better off just building your own firmware using a newer OpenWrt version. There is documentation for that here:
https://openwrt.org/docs/guide-developer/start

Hi br1nary,

How did you get on with this? I need to use new version of OpenWRT that supports Wireguard etc that's not v15 dated back to 2016.

Not had a great deal of joy if I’m honest. I’ve downloaded the OSS sources that are available from the teltonika wiki, and compiled it- however I’ve not had a great deal of time to attempt any version upgrades.

I have tried to get support via there forum about it running such an old unsecured version no longer supported. I think I may have to just return the one's I have and find something else. I will keep you updated if I do come across something.