iPhone 12 mini touchscreen issues

There is an issue with the case and screen protector used together; I have the MagSafe and also a Tech 21 screen protector; have always used Tech 21. However, it would appear that it doesn't matter what make you use, the same problems arise. I was not always able to swipe up on the lock screen to open; it would take a few tries, but all I do now is lightly tap where you swipe up, and it all works fine. If you just use either the case or screen protector alone, there is no problem. Guess Apple didn't account for this!

NO ISSUE with Screen protector Benks KR 0.15mm or 3mk Arc - www.3mk.global/arc . Tested with 10+ different cases (apple and thirdparty)

Looks like only screen protector is problem maker.

I Removed screen protector and using only MagSafe case now.... no more issues with touchscreen.

APPLE has a update out now that fixes the issues,14.2.1

Try installing 14.3

Updated the software and the issue was fixed

You really want to use your phone like this ? It’s funny, you should give it back.

Hard start will fix it I’m sure. Worked for me.

So, spoken to ANOTHER engineer. He says this IS logged as an issue but only v small numbers of people reporting it so they don’t think it is systemic. Perhaps a bad batch. So - please all report guys!!

I recommend contacting Apple Support too. I spent ~3 hours with 3 levels of support. I volunteered to send them a video about this issue. This is not just a case or a screen protector issue. If you leave the phone on a non-conductive surface like a table, or a pillow (yes, I do use my phone on the bed or a pillow), the problem persists.

Hopefully, with enough people reporting their experiences, Apple will dig deep into this issue.

Otherwise,

1. Customers, who don't hold their iPhones in their hands, will be unhappy
2. Case and screen protector manufacturers will be unhappy

I have also noticed if the device is plugged in the touchscreen works just fine with screen protector and case on. Obviously not practical but odd discovery. For now I am just not using screen protector and only case until Apple comes up with solution.

Same problem here. Seems like palm detection problem with case and glass. I mean i suppose that there is an algorithm that detects like “n percent of screen is touched = there is a palm touch, ignore it “, and somehow case plus glass makes our thumb touch “bigger”, so either calibration failed on such small screen (screen is smaller but relative number of covered pixels stays same as in bigger phones) or some hardware issue making our thumb detective as “elephants”.

Im hoping for software fix (however offered exchange option, but fir what reason if every mini is bugged)

Not sure if this is any consolation, but supposedly the glass display on the iPhone 12 mini is a stronger, "ceramic" shield making the display more impact resistant. After experiencing the same issues everyone else is talking about, I found a couple of articles talking about the new ceramic glass on the iPhone 12 mini.

https://www.cnet.com/news/iphone-12-mini-drop-test-ceramic-shield-indestructible/

https://www.theverge.com/2020/10/13/21509008/apple-iphone-12-pro-max-mini-displays-ceramic-hardened

For now, I'll just stick with the case and leave the screen protector off.

I am facing the same issue. Initially I also thought it was the cover. I went back to the person I got the cover from but there when he tried it was working. And when. I tried it was working for me too. Strange that was.

But as soon as I got back in the car it wasn’t working. I cleaned my phone, and my hands. And the cover nicely and neatly and then tried, but the issue was bad.

Even while picking up the phone it was tough.

Later on I realised this was only happening ONLY on the Lock Screen and only with the thumb.

So I started wondering my my thumb(s) had an issue maybe. Googled and read about ‘Zombie fingers’, so I even moisturised my fingers ( what not for a new phone ! ). But it couldn’t be that fingers were dry ONLY for the Lock Screen.

So on the Lock Screen, with the thumb everything is unresponsive. Or rather, it ‘misbehaves ‘ , be it the camera or the torch buttons, the camera left swipe or the widget right swipe it just works according to its own mood. But only with the thumb(s).

An easy way to check if it’s working or not is try using assistive touch while the screen is locked.

hold it and make circular designs. If the additive touch is following up exactly the way your finger is going it’s fine, else it’s not.

So assistive touch too, is working properly with all fingers only if the screen is unlocked.

With a locked screen the thumbs don’t behave. Or rather the screen doesn’t behave with the thumb input.