Chosen Solution
Hello.
I have an iPhone 3gs 16gb but has some problems with auto turning off so i decided to repair it by myself with removing the battery for a while(found this as a solution fot my problem).After i opened it and do that when i put everything back together i didnt hear nothing from the earpiece,only when i press the "loudspeaker".Then i opened it again and check if everythng is attached as it has to be.When i close it come out with the white screen.It responds when i press the lock/power button,but only shows white screen.iTunes recognize it,but because i couldnt use it with the white screen i try to restore it.Now i cannot activate it,bacause i have only white screen.
What is most likely to be damaged?Cables,the display or something else?
p.s.I tried a lot of times with the hard,soft or every other resets with buttons possible.
You more than likely damaged the LCD thus the white screen, and you damaged either the #3 ribbon, or #3 connector, more likely the ribbon as it is pretty easy to damage. Replace the LCD, and replace the ribbon. Instructions for the ribbon replacement here: iPhone 3GS Proximity Sensor Ribbon Replacement LCD replacement is fairly simple with only 6 screws.
