This is written for sprint but use these programs to read the HA & AAA secret from your i730 (not sure about compatabilty with i730 but put it in pass-through modem mode think its **upath on wm5 i730 or **path on wm2003 i730) You need both the ha & aaa for vzw. Thread here
http://forum.ppcgeeks.com/showthread...ighlight=clone
Else you could get data work again from a dmu reset they use qxdm to read and copy your ha & aaa so you can rewrite after flash. However this shouldn't be necessary unless you turned to i730 on or changed radios.