Can i re-program a netgear router with a data card from 3g to (b&g)

Netgear mbr814x With fpc 1070 data card w/antenna
can the netgear ROUTER mbr814x with fpc 1070 data card with external antenna…. be re- Programmed router and card are setup (3G)wireless internet from cellular towers 12 mile reach towards towers. what i want to do is use it for 802.11 B&G systems, i use to have this utility company that supplied these routers and verizon bought them out and they let me keep the equipment after paying my last bill with them. so…/ do you think this can be reprogrammed for my system i supply my own internet with a system i SELL and call (irs)internet receiver systems
with a cisco router 54gl if this one can be re-programmed then i will try and aquire the others that they have, for my internet system.