How do you transfer a Texas driver's license to South Carolina driver's license?
By going to South Carolina's office for the drivers license and
submitting a required application with your current Texas driver's
license. WHen you pass your eye test, etc, you will have to
surrender your Texas license and you will be issued a SC license in
its place.
BTW - SC DMV will check with TX DMV to determine if your Texas
license is valid.