This is the solutions that covers for iphone 3Gs LCD display screen backlight not working or unable to light up and result to a dark screen display. If ever encountered this problem on iphone 3Gs especially wet damaged devices this solution a big help for it consists of two different stages of repair.
There is spots on the iphone 3Gs located at the LCD pin connector that most often get damaged and result to the display backlight won't work.
Just download for the clearer and larger image of the solution below to see and try it for yourself.
Download iPhone 3Gs Backlight Not Working Solution