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Sorti le 25 septembre 2015. Modèle A1688/A1633. La réparation de ce modèle est similaire à celle des versions précédentes et nécessite tournevis et outils pour faire levier. Disponible en GSM et CDMA / 16, 64 ou 128 Go / Argent, Or, Gris sidéral ou Or rosé.

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Can iPhone 6S models be susceptible to iPhone6/6+ "Touch disease"?

I have an iPhone 6S which was dropped and suffered a broken screen. I had the screen replaced by what I assume to be a reputable 3rd party repair shop that has fixed many apple products for me in the past. However, days or weeks after the screen was replaced we started noticing that the touch screen would be unresponsive 9 times out of 10 when waking with the home button. When put to sleep with the power/sleep button, then woken with the home button again, the screen would be responsive for the remainder of the session. I took the phone back to the repair shop for warranty and was told it was not the screen and that the phone likely has an issue with the Touch IC’s. I have reached out to a couple of other repair shops and they are adamant that the 6S DOES NOT suffer from “touch disease” and it is likely a faulty screen. While most sources on the internet confirm this (including this thread on here How do you fix the 'touch disease'?) I have seen reference to the 6S on other blogs (e.g. https://metro.co.uk/2016/08/25/iphones-h...). Most of this info seems to date back a couple of years. In 2019, can someone provide some clarity? Should I push the screen repair shop to try another screen or is he likely right and it is an IC issue?

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UPDATE: For fun I performed a DFU restore. The phone did not exhibit any strange touch screen behavior for several days but eventually returned. Still haven’t been back to the shop that sold me the replacement but I will visit him next week. This is strike 2 for him. Earlier he replaced a screen on an iPhone 6 for me but said the home button from the old screen had been replaced before and so the touch ID would never work. I knew this to be false because Touch ID was enabled and working on the broken screen before I dropped it off but he was adamant. When I got home I took the screen off and reinstalled it just in case it was a bad connection on the flex cable. The touch ID works now. Hmm… Thinking I should find another repair shop to work with.

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The iPhone 6S and up does not suffer from “Touch Disease” per se.

They can have touch related issues, which are almost always screen related, but not for the same reasons as the infamous Touch Disease on the iPhone 6/6 Plus. You can check out my blog post (linked above) for the technical details but in short, the IC’s that handle the touch functions suffer from some flaky copper traces on the logic board. These traces are very thin and will break over time as the iPhone is flexed through normal use (the iPhone 6 Plus is particularly “flexy” and it has a critical trace right where the board flexes the most).

This can’t happen on the iPhone 6S (and up) because on those devices, the Touch related IC’s are embedded into the screen. The only thing related to touch on the iPhone 6S logic board is the circuitry that powers the touch IC’s in the screen. So it is possible that your specific problem is not screen related but not for the same reasons as the 6 Plus. In your case, if a known-good or high quality replacement screen does not solve the problem, then you may have a logic board issue…you just can’t call it Touch Disease.

Note: Overall the article you link is correct and they cite well known and highly experienced techs (Jessa & Jason) however the journalist is the one that mentions the 6S in the same breath as the 6/6 Plus, not the quoted technicians. It’s just a simple journalistic error.

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Thank you for this excellent response. It clears up a lot for me. I will try to press the repair shop to do a warranty replacement.

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Larry Jorgenson sera éternellement reconnaissant.
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