Netcomm NF4V hotspot repeater mode?

Hi temporarily, Im using phone 4g and its hotspot for data. The phone has fairly weak transmit signal, and it would be an improvement in several ways if I could bridge the hotspot via NF4V.

Having read the manual, there is an option to set up a bridge in nf4v wireless, but its not altogether clear to me how to do it. For a start the settings require a mac address for the hotspot, and how do you handle the hotspot login and password options?

Perhaps Im barking up the wrong tree?

Thanks,

Alistair.