[MarkMoore]

To make any changes, yu will need the MSL code - that is the 'Master Lock'. You can call Sprint, but thier policy is to not give it out unless you are canceling your service, paid in full and contract obligations has expired.

I called an agrued with them for a bit - my phone is paid for, has no contract and is a add-on line to my wife's contract. After telling them - 'Oh, I can drop my service and get the code, but you won't give it to me to keep me as a customer'... they broke down and gave it to me. Not right away, but the tech said "OK let's try s few things. Oh, you mite won't to write these down in case..." and gave it to me.

So they'll give to you, but be ready to pull some teeth to get it.