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Repair information and guides for the iPhone 6S released by Apple on September 25, 2015. Models: A1688, A1633

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Touch Id not working suddenly

So a guy brought me his phone after he tried to replace the screen himself. When he brought it touch ID and auto brightness was not working. I checked the cable under a microscope and did not see any breaks in the touch ribbon cable.

So I then cleaned all of the connectors and tried again with the same result. I reset the phone back to factory with the same results. I then put the phone into recovery mode and did a upgrade and woola it all worked.

I gave the customer back the phone and he used it for a few days and now touch ID isn't working again and he said the screen is glitchy. He reset it back to factory and touch isn't working but the screen is working better. I had him put it in recovery and try doing an upgrade and touch still is not working.

Has anyone encouneeded this or have any suggestions?

Answered! View the answer I have this problem too

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What phone models is it? Have you tried with other LCD?

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My guess is a cheap quality screen replacement with a bad home button extension cable which comes with the screen.

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I agree. You'd have to try with a new or at least known good screen. After you connect his Touch ID button and install the screen, do a restore and test.

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Does it matter that it was working, and then just stopped?

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Also, I did replace the screen and did the restore and it worked. And it lasted for a few days. Could this be software related?

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Andrew Hogeboon will be eternally grateful.
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