Released September 16, 2016. Models A1661, A1784, and A1785. Available in 32, 128, or 256 GB configurations in Rose gold, gold, silver, black, jet black, and (Product)Red.

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Home button too sensitive after screen replacement

Hello, I have got question for ifixit community!

I had replaced a display on iPhone 7 plus for my customer. Everything works fine, but home button not. Touch Id works properly but home button clicks only on finger on. For example; I can't make double-tap for one hand control, because only on touch it clicks.

Had anyone this problem? Some reasons?

Thank you, Victor

Answer this question I have this problem too

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I bet the plate is upside down

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Hello, I think that too, but I only switch 2 original displays. (Only Home buttons) and their bracket (I check if bracket is in correct position)

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@tomchai is correct for the most reasonable solution. I only say that because I have come across this. If you press on the home button and it clicks like a 6s then its the bracket underneath the home button. It needs to be inspected and see if it needs tightening.

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This is NOT a solution, just adding my experiences!

I got a my first "freaky Home button" today, and no adjustment of the screw (the one in the HB itself) would cure, or even reduce the crazy random activation of the "click".

Neither did bending the bracket in various directions, or anything else.. It did however, seem to help a little bit, to wipe off the grease off the key, but after 5-8 "clicking's", it freaks out again..

It's a temporary error.. sometimes, especially with the screen off the frame, it seems to behave slightly better.

According to the customer, the problem first occurred after another shop put on a copy.. and they also pinched the flex cable but screen still worked.

The LCD assembly which is on now, is an original refurb.. I fiddled around with this abt an hour now, and begin to worry abt the health of the screen flex cables, so any suggestions would be appreciated !

PS: I don't see how one could flip the HB bracket.. is it even possible?

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Hey Guys

Time for facts.. As no one commented on my post above, I talked to my (highly skilled) SMD repair connection, and it turend out, that he knew both the issue, and the cure.

This annoying "double click" is caused by a damaged BGA soldering, on one of the small components on the HB flex, and arise when forcing the HB flex off the screen frame to fast, and without heat. Adjusting the screw as suggested elsewhere in this thread, will just arc the flexcable in slightly different positions, and thus the loose component might (in some cases), achieve connections required to function properly. In other cases (mine), not so much.

The correct repair, is to re-solder the HB Flex componment.

To avoid this in the future, heat the glass just right of the HB, to abt 60-70 degree celcius, and use something very thin, to slowly pry off the flexcable towards the HB key. I did it like this from day one, and haven't had this problem once. DO NOT heat up the HB key it self.. I am sure it will "break" somehow, and render your (or your customers) i7 useless.

I hope this will help some of you! ;-)

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FIX4U.DK - what part of the home button needs re-soldering?

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Readjust the screw right underneath the button, careful not to make it too loose or the button may leak water.

On a second thought, maybe you are not aiming for water resistance anyway, so just normal tightness and not too tight to break it, not too loose so it may come off and end you up with a dead forever button.

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You mean put screw directly in home button without metal bracket?

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No, adjust its tightness.

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Sorry, I don't understand...

But thanks for your help :) Home button doesnt work normally outside of phone too.. I dont know what this can be.. Without bracket, with bracket, inside, outside, nothing works... Home button is too sensitive. I only put finger on it, and it clicks 2-times or more.. Not like on normal iphone 7, when I put finger on home button, it doesnt make anything..

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I have the same problem, it has been after water damage

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There are 4 screws holding the bracket. Could it be the center one is too tight??? Or maybe any of the others???? I do not think it is connector.

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I don't need to keep water-resistance.. But I check home button outside of display and it doesnt respond pressure I think.. Can I damaged pressure sensor?

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Same problem here. What component should I️ solder?

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Victor will be eternally grateful.
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