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Fourth generation iPhone. Repair is straightforward, but the front glass and LCD must be replaced as a unit. GSM / 8, 16, or 32 GB capacity / Model A1332 / Black and White. This page aims to help users troubleshoot, fix, and seek help for the iPhone 4.

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iPhone thinks home button is pressed after home button repair attempt

Home Button registered only 20% of clicks, tried to replace it with a replacement homebutton+flex cable, aready assembled.

I couldn't spot any differences to the original home button, other than the elastic, clicking metal part on the underside being quite a bit off-center.

After trying to replace it, the iPhone doesn't respond to any home button clicks when booted up normally (I do "feel"/hear button click, but only if the upper half of the button is pressed, the other half doesn't move.

If i attach it to my macbook via usb it automatically enters restore mode, or alternatively dfu mode if i press the power button for some time. That's why I think it might think the home button is always pressed (and because of that just ignores it)

Is the problem most likely caused by a (maybe) counterfeit flex cable or the moving/clicking part on the underside being off center or some error during repair ?

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I don't think it being off center would matter all that much unless it was totally off. The length of the cable that enters the connector would not allow for it to be in an inoperable area. You have most likely installed the ribbon cable incorrectly into tho connector on the charging port. I have done many repairs and I would replace the cable again, but this time replace the dock connector (charging port) as well.

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thanks for your answer! I will try.

Had some problems at the beginning fiddling the ribbon cable into the connector / it ended up slighty angled because of the length of the cable and because I didn't see the original cable wasn't really flat, but slightly bent 2 times to adapt to the height difference from home button to connector and I ended up trying to bend the replacement ribbon cable a bit too.

Is it better to bend it 2x a little bit, or insert it slightly angled, or just force it in parallel and leave some tension within the cable?

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If you pull the cable through the housing it will straighten out a bit. A bit of angle is okay, but you can eliminate the angle if you pull it through towards the front of the housing where the button sits.

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bla bla will be eternally grateful.
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