you probably need to replace your digitiser. :)

just replace the ball, it pops in and out, use tweezers or a small flathead screw driver

Bad news to tell you it is the logic board, and it's drawing too much current. I'm still trying to work out how to repair it, I'd like to know what components need replacing if its possible too. Or else u can buy an extended battery case for your iphone.

I've come across that before, change the SYSTEM connector and it should resolve the issue. :)

at the bottom of the iphone, they are 2 speaker meshes, maybe they are blocked or covered ? try to clean it with a tooth brush, if not, u need to replace your speaker box. :)

you need to put a little bit of force, and check out the outter frame that it is aligned with the housing as u slide it on. :)

try replacing the audio flex and/or the speaker box and system connector.

That's the bracket for the system connector that is screwed onto the rear housing, acts as a ground for reception.

seperate the digitiser from the lcd? it's possible cos in china they sell genuine lcd with copied digitiser, a friend told me they made special tools/machinery to seperate the 2 pieces. I've tried many ways to seperate it, no possible way without damaging the lcd, I was thinking maybe super hot steam, but then it would damage the LCD in the end :(

you would have to check with your back case, is it a genuine one or the after market china copies, as some of them are faulty, you should take the audio flex from your original housing and switch it with the one in the housing you wish to use, and the home flex, u check for connectivity with a multimeter as your pressing it and depressing it, if its all good there, then it's your system connector that needs replacing. 3gs home flex can be used in a 3g, the pins are longer too.