Cannot flash WRTU54G-TM -- get "Incorrect image file!"

Installing and Using OpenWrt
1

I'm trying to re-flash a WRTU54G-TM (please note the "U", it's there on purpose, this router is the T-Mobile HotSpot model with two phone ports along with WiFi.) I've tried the file:

lede-17.01.0-rc2-r3131-42f3c1f-adm8668-squashfs.bin

I've also tried several variants of the file:

openwrt-adm8668-squashfs.bin

All of them result in the error message "Incorrect image file!" and the router stays with its stock firmware.

I posted this question in the OpenWRT forum before it went belly up and got no answer. Anybody here have an idea of how to update the firmware on this router?

2

Regrettably not an answer, but https://openwrt.org/toh/hwdata/linksys/linksys_wrtu54g-tm indicates

Barrier Breaker 14.07 not built and Chaos Calmer 15.05 does not currently boot

3

I'm such a noob that those points don't mean a lot to me specifically, but I gather the gist of it is that this is a no-go for my router, with the chance of there being additional work done on it being about zero. Correct?

4

I can't speak for the devs, as there may be someone "motivated", but it's a 2007 device that only supports 802.11b/g and is limited by 100 Mbps Ethernet and a 200 MHz SoC.

It apparently had a build in 2012. Barrier Breaker 14.07 was in 2014 and Chaos Calmer 15.05 was in 2015.

Are you looking for the T-Mobile services, or just a router that you have lying around? If the latter, you'll likely be better served by one of the inexpensive (under US$20 or so), new devices in

(or if you can get a used TP-Link Archer C7, they're around US$40 here in "mint" condition)

5

I'm just trying to add it to my stable of routers. You're right, of course, it's not worth much, so sounds like I'll just sell it off as an "as-is" with stock firmware and move on. Thanks.