Fast, on-site repairs for iPhones 3G, 3GS, and 4 with cracked screens and water damage, near the USC campus just off Figueroa. Screen replacement for iPhone 3G and 3GS in approximately 10 minutes, iPhone 4 screen replacement in approximately 1 hour. Can also convert your black iPhone 4 to white and vice versa. Free protective bumper with each iPhone 4 repair! Screen Replacement Cost iPhone 3G/3GS $75 iPhone 4 $125