iPhone 3Gs L Display backlight Not Working Complete Repair Solution

I have fix this problem many times and this solution solved the problem. I have been tried installing a new L screen module but the problem still exists.
There is spots on the iphone 3Gs loed at the L pin connector that most often get damaged and result to the display backlight won't work.
Just download for the clrer and larger of the solution below to see and try it for yourself.

Download iPhone 3Gs Backlight Not Working Solution