Second generation of iPhone. Model A1241 / 8 or 16 GB capacity / black or white plastic back. Repair is more straightforward than the first iPhone. requires screwdrivers, prying, and suction tools.

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Home button not working, screen tilted and "blank"!


I've just managed to make a friend's iPhone 3G to work, screen and touch works fine. But the home button doesn't work which I guess are the golden/silver pins at the dockconnector.

Following items has been replaced for repair:

Dock connector



Since the screen is tilting the home button won't work properly - but how do I fix that? I'e tried re-assemble and disassemble several times with just ending up with hurting my index fingers.

Here's a picture from my iPhone 4,

Even if i force it down it still wouldn't work.

Also most of the times i manage to boot it, i receive a black screen but get vibrations from the vibrator as if it confirms that power is receiving. I've followed your guide as good as I possibly could, but apparently that wasn't good enough.

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looks like the dock or home button flex cable needs to be replaced. First off the iPhone 3G home button flex cable has two small prongs that make a connect on the top of the dock when properly set down. You may have some luck with very carefully spreading the prongs up so they make a good clear connection on the dock. The home button flex cable isn't to expensive or hard to replace (you will have to lift up the glass again...) iFixit has plenty of repair content on this issue. Then do a complete restore this might help with the LCD going out, if I understand your issue correctly.

Good luck.

"There's an old saying in Tennessee — I know it's in Texas, probably in Tennessee — that says, fool me once, shame on — shame on you. Fool me — you can't get fooled again." George W Bush.

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I've so far managed to get the screen working, probably a short somewhere i managed to get around.

The main problem is that the dock connector won't get all the way down, neither the grey frame between the back and front panel. When looking i noticed it's the mic that seems to push everything up, but i can't work around this.

The iPhone starts well as it should but it's unusable (ie Home button) due to the tilting connection at the bottom. I don't think there's something wrong with the buton itself, just the gap.


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the dock connector doesn't look lined up in your photos-are the screw holes on top of or under the rear case fitting? dock should sit on top.

also look at the other end of motherboard.. the sim slot end should be put in first, slide it in a bit before where it will finally sit, there is a little ledge it sits under (near camera)once that is in the rest should fit in fine with maybe a bit of trickiness near the antenna prong on bottom right

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once the dock is in properly and the screen can make contact you may find the home button is miraculously working again. I'd follow parker's advice about checking out the gold prongs (get flattened easily with all the opening and closing of phone)


try putting dock in mic and speaker first. -they are quite flexible,once they are in the enclosure the dock will sit properly. you don't have to take mobo out


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I am working on a board which has a non-working home button also. Another test you can do if you are familiar with a ohm meter is to measure across the pads where the home button contacts the dock connector. On mine they are showing a short. When the dock connector is disconnected from the motherboard the short goes away, which means the short is on the motherboard and not the connector or dock.

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