I just installed the Gobie 3000 Modem in my X220

[ThinkpadAddict]

Does anyone know what the blue AUX wire does on the Sierra Wireless modem. When I tried to connect it to the post on the modem, it broke. I did manage to connect the red main wire without a problem. I re-assembled the laptop and booted, installed the driver without a problem. I can receive a Verizon signal only, no T-Mobile or ATT.

Does anyone know what role the blue AUX wire plays?

Thanks.