This is the reason why some phone manufacture are against custom rom, cough HTC, Motorola locking the bootloader pretty soon Samsung. They loosing to much money accepting mess up return phones by the user. Nothing Personal but you deserve for at&t not to exchange your skyrocket.
Sent from my SAMSUNG-SGH-I727 using xda premium
They have a secondary bootloader for a reason, and that is to save the phone when people think they "bricked" it.
Samsung makes more money selling phones then HTC, Motorola, and LG combined, I really doubt they lose money.