Install on RUT241

Installing and Using OpenWrt
1

Hi!

I've got an RUT241 that I'm trying to install an up to date version of OpenWrt on.

The 241 seems to come with a (possibly proprietary) fork of OpenWrt based on version 21.02.0;

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, but it seems to only want to install firmware and packages that are signed by Teltonika (the manufacturer). If I try to install an up to date OpenWrt version through the web UI, I just get an error saying "Firmware image is incompatible with this device, make sure that your firmware is obtained from official sources", Where the "official sources" links to this webpage. That's no good.

The same thing happens if I put the router into bootloader mode, it still hard refuses to install anything that's not the forks from teltonika based on 5 year old versions of OpenWrt.

The 241 is listed as supported by OpenWrt on the firmware selector - as long as I select an 25.12 RC or the SNAPSHOT, so I assume it should be possible, but does anyone have an idea of how I would go about installing OpenWrt on it? It might be that I haven't found the correct docs - what I have read so far seems to indicate that I should be using the web interface or the bootloader mode, but both of those fail.

I have also never tried to configure a router before, so please bear with me if there's anything obvious I'm missing.

2

According to the git message you should be able to install openwrt through the web ui using the factory image. Once it runs official openwrt you can use sysupgrade files to upgrade between versions. Did you use the 25.12 factory image?

https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=11189ee7fb6f4175dbd006fbe24e53e13e8f1eec

https://downloads.openwrt.org/releases/25.12.0-rc3/targets/ramips/mt76x8/openwrt-25.12.0-rc3-ramips-mt76x8-teltonika_rut241-squashfs-factory.bin

1 Like
3

Using that factory image, I get this:

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So it seems like there's some checking I can't bypass.

4

It could be that Telefonika has introduced these checks and you need to downgrade to an older firmware first? I guess you can try to contact the person that added support for this device and see if they have any ideas.

5

Both good ideas, I will try. Thanks!