Look at XDA Forums link below. I did this and seems to have worked, remember proceed at your own risk, their will be no support given.
unlock free proceed at your own risk! - xda-developers
Is there a way (free) to get my skyrocket to be unlocked? I am trying to sell it and definitely need it to be unlocked. Any help would be greatly appreciated!!
Unforutanetly my phone is not rooted.
What's your carrier?
If you're with T-Mobile, and you've had service for 60 days or longer, they will unlock your phone for free.
Sent from my LS670 using Android Central Forums