Ipad Pro 2018 11" - Screen Protector Issue

So here's a question that has left me baffled. I have a new 11" Ipad Pro and all good.


However, after applying a Face ID friendly glass screen protector, (I've tried about 5 different brands) in certain lighting conditions the touch screen does not respond. If I then put my hand over the sensors it responds perfectly.


Just to add even if I only stick a screen protecor on half of the ipad completely avoiding the sensors the same issue happens when trying to work on the protector side but not on the part of the screen that remains uncovered.


Without the screen protector on all works perfectly. Its pretty annoying though because it happens a lot.


If anyone can explain or fix this I'd be very grateful. I note on a lot of Amazon reviews that people complain that screen protectors impact sensitivity of the screen but I wonder if they have the same problem as me with the sensors??


I also spoke with Apple support and they had no idea what could be causing it.

iPad Pro 11-inch, Wi-Fi, iOS 12.1

Posted on Nov 30, 2018 10:57 AM

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Posted on Nov 30, 2018 2:07 PM

I found one of the other posts on this, but not the larger post.


https://discussions.apple.com/thread/8623533

BTW,

This 2018 iPad Pro touch response issue does not happen with thin, plastic film screen protectors.

ONLY glass screen protectors are affecting the touch sensitivity of the 2018 iPad Pro models.

Someone mentioned replacing a glass screen protector with a thin film screen protector does not affect the touch sensitivity of the 2018 iPad Pro models.

117 replies

Jan 16, 2019 9:15 AM in response to Rick600

I do have the new ipencil and it works fine with the screen protector. My only issue is the face id doesn’t work any more. I contacted Zagg about this and they are aware of the issue. I was told they are working on a new version of glass protector that will resolve this issue. It should be available by the end of the month. I can replace the one I just got with the new version free of charge and shipping waived. I will post if the new version works with face id.

Jan 20, 2019 9:00 AM in response to debbygun

I have this exact same situation... my Pencil works fine on my ZAGG glass for my iPadPro 2018 11” but Face ID is broken and does not work in any situation. My iPadPro consistently tells me that the “Face ID Camera is Covered.” I am very happy to hear ZAGG is working on a new version that will work with Face ID and the Pencil as it does with no glass protector installed. Thanks for the update on this.

Jan 23, 2019 5:02 AM in response to debbygun

In context of FaceID with screen protectors... herewith is a technical explanation of the both issue and its resolution...


The FaceID system has at least two seperate but critical optical components - these being the IR Dot Projector and IR Camera elements. These elements are combined to produce a single optical sensor system - and it is one or other (or potentially both) of these elements that suffer performance issues if covered by a glass element.


Even if the two outer surfaces of the glass screen protector are totally parallel (any deviation from which will cause defraction), the covering glass layers, optical coatings and necessary fixing adhesive will all have properties that influence absorbtion of light at certain optical frequencies/wavelengths. Additionally, any change in material density (such as glass-to-air or glass-to-plastic surfaces - including internal lamination layers) will introduce internal reflection and scatter at each layer boundary. It is these optical properties and their interaction with the sensor system that are likely interfering with indended functioning of FaceID.


The simple solution to FaceID issues, in context of applied screen protectors for both iPad and iPhone, is to select a screen protector that does not cover any of the active sensor elements (i.e, the screen protector will have a corresponding notch or cutout for these critical elements) - this being a feature similarly necessary for correct functioning of TouchID (which is also a different form of optical system).


It has been suggested by some contributors that “film type” screen protectors have been successfully utilised. Given that the film-thickness is considerably thinner than that physically possible with a glass alternative (also noting that plastic film lacks laminations), it is possible that the critical sensor system suffers less optical performance degredation.


Any issues with screen touch sensitivity are completely unrelated to the optical or mechanical properties of the screen protector, but may be influenced by dielectric characteristics of the appled screen protector material(s).

Jan 24, 2019 3:55 PM in response to dsamuel24

"My touch sensitivity is not hampered at all by my 2nd gen ZAGG glass+, and my Pencil works well about 75% of the time, so the issues many users are having with the ZAGG glass effecting touch sensitivity is not happening in my particular experience."


My iPencil, without any screen protector works 100% of the time. I would not be satisfied with it working 75% of the time at all! Sounds clearly like there is still an issue....did I miss something?? I guess you are telling us it works poorly....

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Ipad Pro 2018 11" - Screen Protector Issue

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