I have used the utility, and am able to root my phone, but when it comes to unlocking bootloader, all goes fine, till the end...then it say's "fail -11 write" anyone have an idea how to fix/get by this?? would appreciate any help. using droid razr maxx hd build # 9.8.1Q-62_VQW_MR-2 android 4.1.2 system 9.16.6.xt926.Verizon.en.US....kernel 3.0.31-ge491d6d