So I decided to give
a try and see if I can carrier unlock it.
But build.prop reverts everytime I make a change. I have tried using build.prop editor and
mounting /system in rw mode and then pushing file with adb. Both of the methods didn't work.
I cannot use the method mentioned in the thread since I am in stock recovery and it cannot verify the signature.
Anybody has any cool ideas on how can I change the build.prop.