MIFI - alternative firmware - using modem

Has anyone gotten a 4G/3G module working with MIFI running LEDE or Rooter?

I tried Rooter for Domino Pi listed here and LEDE from the trunk. Both worked fine, but no matter what packages I installed, I could not get the modem (PCI-e module) to be recognized. Has anyone done this?

Thanks!

Can you post links to these firmwares specifically for the mifi?

https://downloads.lede-project.org/snapshots/targets/ar71xx/generic/

https://downloads.lede-project.org/snapshots/targets/ar71xx/generic/lede-ar71xx-generic-gl-mifi-squashfs-sysupgrade.bin

http://ofmodemsandmen.com/downloadsp.html

http://ofmodemsandmen.com/download/GoldenOrb/gl-domino-GO2016-04-01.zip

The Rooter (ofmodemsandmen) firmware, is for the Domino Pi, but the MIFI is based on the domino core. It worked for me, but I think I had to install it from the web recovery console. The LEDE can be installed from LUCI.

—EDIT—

I have also installed the DD-WRT build for the AR150:

ftp://ftp.dd-wrt.com/betas/2016/12-15-2016-r30949/GL.iNet-AR150/factory-flash-uimage.bin

Checked basic usage - wifi, eth ports – it works fine