I was messing around with my iphone 5 in the car the other day and mistakenly locked my sim, the phone says I need a puk code, i have no clue how to get my phone working again! HELP. -Thanks
If you log into your Sprint account, on the main screen, where the picture of your phone is, there is a link that says "Get my PIN1/PUK1 unlock code". Its right under contract details.