The MBR 1515 has great 4G LTE antennas and range vs. the little pocket routers. Is it possible to convert/modify the mbr1515 to the Netgear firmware? Also is it possible to update this router as Verizon removed this capability in current software. Netgear told me that only Verizon could/would do that and that this router supports other 4G LTE carriers. I'd just like to find some support for this router since it was very expensive. With the Verizon load, it won't even failover. It is essentially a Netgear WNDR3400 with 4G LTE radios added to the WAN interface port and a sim card slot. Does Verizon support this in any way other than DOA?