Wireless Joint

"That's 100% no go for any openWRT router that I know of, like the 1608, as they all use the USB bus for modem interface." That they use USB bus was suspected by me..
A couple of odd items versions of ModemManager do support: * Foxconn SDX55 T99W175 5G sub6 PCIE Modem and the latest openwrt uses ...

Woot! Round 1: success.
=Confirmed the modem is not DOA..

The converter had ordered arrived a week early so was able to complete the testing on the mini-PC Windows... Will be testing other adapter combinations to check what does and does not working. for now..
System has
key m - Support 2*M.2 2280 ...

So of interest....

1st Linux is being a royal pain to get the recompile to complete.. both plenty if issues and a royal pig when coming to CPU use.. anyone trying just incase.. the 'make' function is single threaded. (1 cpu core) and after half a day of compiling found this out when pc lost power ...

Round 4 - up in smoke (figuratively) and no phoenix yet

In troubleshooting I found additional settings that got me wanting to re-install the removed network management agent stuff.. Also the side issue of not able to load it on any soft restart mysteriously started working .. So wanted to try for ...

Well dont recomend upgrading to that firmware! sp138337 = T99W175.F0.1.0.0.9.GC.004 071 IS a no no!
Crashing firmware seems to be worse on it.. So things are pretty unstable.

Will be away for a bit so will look at it when back. Plan is if there is not a updated ver will reach out to HP again and ...