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iPhone 17 Pro Max pinch-to-zoom out is erratic with a phone case

Hey everyone,


I got an iPhone 17 Pro Max two days ago, and I noticed a strange issue with pinch-to-zoom out.


In the Photos app, when I try to zoom out using two fingers, the zoom sometimes moves slowly, gets stuck, wiggles, or suddenly changes direction. Instead of zooming out smoothly, it can jump between zooming in and out. I also noticed the same issue in Apple Maps.


At first, I thought it was an iOS bug or a faulty screen protector. I changed the screen protector a few times, but the problem persisted.


Then I accidentally discovered something: when I remove the phone case, the zoom works normally. When I put the case back on, the problem returns. I’ve repeated this test more than five times, even without closing the app between tests.


The case is transparent, fairly hard, and seems to fit normally. It isn’t obviously too tight or too loose, and it doesn’t appear to touch the screen.


Has anyone experienced something similar? How could a normal-fitting case cause this issue, especially when it only seems to affect zooming out?


I’m trying to understand whether this is a case compatibility issue or whether there could still be an underlying touchscreen problem with my phone.


Thanks!

2 replies

You might have purchased a poor-quality screen protector.


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Please don't post multiple threads on the same topic. Stick with just one and people will respond as time permits. This is, after all, a user to user only forum.