Droid razr m 4.1.2 (98.30.1.xt907.verizon.en.us)help?

I am getting error in updating it i tried many times download 446MB data and when update starts it failed when reach 20-25%,
please please help me and also phone is locked and tried but nothing happened still locked. I HAVE ROOTED IT. only root works its not updating or unlocking is any solution
phone detail
system version
98.30.1.XT907.Verizon.en.US
Model number
DROID RAZR M
Android version
4.1.2
Baseband version
AM_BP_101032.021.32.80P
Kernal
3.0.31-get7deb8 thu sep 26 12.38.22 cdt 2013
build number
9.8.1Q-94-1
Build date
Thu Sep 26 12:22:41 CDT 2013