I just bought a Verizon xv6900, I tried many things but could not make the GPS to work. Then I followed this procedure and now GPS works like a charm:
http://wiki.ppchaven.com/index.php?t...IX_VERIZON_GPS
On step 5, I flashed to NFSFAN WM6.5. On step 6 I did the first part, i.e. put in these:
IP 216.198.139.92 port 8889 IP/PDE
You don't have to step 6, but if you do initial lock takes only several seconds even in the house.
Believe me, don't waste your time on a VZ ROM, you must use a 3rd-party ROM such as NFSFAN. Then GPS works out of box, no need to install any extra program or do any tweak.