iPhone 4s screen replacement disassembly and reassembly [english] - YouTube
iPhone 4S LCD Replacement
How To: Replace iPhone 4S Screen | DirectFix.com - YouTube
iPhone 4S 4GS Backlight full repair kit Combo deal 1 X backlight IC 1 X Backlight Coil 2 X Backlight filters fuses | CyberDocLLC | iPhone and Apple Products Hardware Repair Solutions