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 ?
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.