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The iPhone 15 Pro and Pro Max will use a new ultra-low energy microprocessor allowing certain features like the new capacitive solid-state buttons to remain functional even when the handset is powered off or the battery has run out, according to a source that shared details on the MacRumors forums.

iPhone-15-Pro-Buttons-CAD-Leak.jpg
CAD-based render of new solid-state buttons on iPhone 15 Pro models

The source of this rumor is the same forum member that shared accurate details about the Dynamic Island last year before the iPhone 14 Pro was officially launched, so there is good reason to believe that the following information is reliable.

According to the anonymous source, the new microprocessor will replace Apple's current super-low energy mode that allows an iPhone to be located via Find My after it has been powered off or for up to 24 hours if its battery has been depleted, and enables Apple Pay Express Mode to be used for up to five hours after the battery has run out.

The new chip will allegedly take over these existing Bluetooth LE/Ultra Wideband functions in addition to powering the solid-state buttons – including an "action" button that replaces the mute switch – when the phone is on, off, or the battery is depleted. The microprocessor will "immediately sense capacitive button presses, holds, and even detect their own version of 3D Touch with the new volume up/down button, action button, and power button, while the phone is dead or powered down," says the tipster.

The source also claims that the new low-energy capacitive features are currently being tested with and without Taptic Engine feedback while powered off, but not while the battery is dead, however "whether this tidbit makes it to production or not is highly uncertain but IS being tested," they added.

The source claims that their "man inside" Apple has seen two functional versions of the rumored new unified volume button in testing, including one where the volume goes up/down faster depending on the amount of force used when pressed, and another where the volume can be adjusted by swiping up and down on the button with a finger. They do not know which method will be adopted for the final release, but these features are enabled by software, so this functionality may well be user-customizable.

The anonymous tipster claims that their inside source is on the Apple development team, so they do not have additional information about the design of the new models unless the physical features require software development to complement them.

As per previous rumors, solid-state capacitive buttons are expected to be exclusive to the iPhone 15 Pro models, with the standard iPhone 15 models retaining the same traditional button mechanism as on the iPhone 14 series. The iPhone 15 Pro is also rumored to be gaining a software-customizable button in lieu of the mute switch, with a unified volume button or "rocker" replacing the separate up/down volume buttons. For everything else we know about the new iPhone 15 series, check out our dedicated roundups using the links below.

Article Link: iPhone 15 Pro Low-Energy Chip to Allow Solid-State Buttons to Work When Device is Off or Out of Battery
 
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Pezimak

macrumors 68040
May 1, 2021
3,158
3,509
So they’ve replaced some buttons with touch controls and a micro processor and all the other functions and hardware required for all that, just to replace some buttons… and then they’ll apparently increase the price, just to replace some buttons oh and a switch…

Cant innovate anymore my a**…

I’m sure it’ll be a great device and perform very well, but this does seem a bit like change for the sake of change and to warrant you buying a new iPhone does it not?
 

Kissmo1980

macrumors 6502
Feb 16, 2021
452
1,243
How do you turn on your phone when:
1 - Phone is shutdown
2 - You are missing your cable
?

Is the power button is standard?


EDIT: Why do people disagree with asking questions? 😂 I am trying to understand how it would work.
 
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MrCrowbar

macrumors 68020
Jan 12, 2006
2,236
527
Home buttons did fail a lot in earlier iPhones (so people had to use that assistive touch thing because a new home button was pricey). Replacing the physical button with the taptic engine solved that and it also made trackpads on MacBooks infinitely better.

Honestly buttons on iPhones can feel cheap, especially on a $1000+ device. It sucks when they rattle, get a bit stuck from grime or the silent switch not having that satisfying click like on day 1.
 

krspkbl

macrumors 68020
Jul 20, 2012
2,182
5,269
i'm more concerned about how this works with cases.

will case makes be able to make buttons that simulate a finger touch? i mean like know how you get those gloves you can wear to use your phone without taking your gloves off? maybe they can put a new material inside so that the button recognises the press?

i'll tell ya one thing, if i can't use a case with the new iPhone then i ain't buying an iPhone.

If "action button" will be configurable to perform different actions (or run any shortcut in general), this would be a welcome update.
i never use the mute switch so being able to change it to something useful would be cool.
 

3530025

Cancelled
Jul 14, 2022
647
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It's a shame. I really want always on display, so I have to grab 15 Pro. But I would prefer classic tactile buttons from the non-Pro version. :/

What's the advantage of emulated buttons when it just brings more complexity to the whole device.
 

headlessmike

macrumors 65816
May 16, 2017
1,300
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It's not really any different than how the buttons work on today's devices. The physical power switch on an iPhone only sends a signal to the processor which then decides what to do, it does not disrupt the power to it or anything like that.

It's funny, because I feel exactly the opposite. I really miss the old trackpad without taptic engine, with real click. It definitely does not feel "infinitely" better to me.
The biggest improvement in my experience is that the tactility is equal over the entire surface of the trackpad. On older devices klickning closer to the keyboard was more difficult due to the proximity of the hinge.
 

gmarm

macrumors regular
Jun 26, 2010
174
362
Berlin
I wonder how swiping for volume would work with cases. They would all need to have a cutout of sorts.
 

3530025

Cancelled
Jul 14, 2022
647
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The biggest improvement in my experience is that the tactility is equal over the entire surface of the trackpad. On older devices klickning closer to the keyboard was more difficult due to the proximity of the hinge.
This is true. Yet I never have a need to click near the keyboard. When I'm using trackpad, I click with my thumb on the bottom of the trackpad. So this is non-issue for me. The old trackpad without haptic engine just felt better to me. It clicked more (when press at the bottom) I would say. And I really liked how I could simply feel trackpad to "drop" down physically.
 

contacos

macrumors 601
Nov 11, 2020
4,882
18,770
Mexico City living in Berlin
i'm more concerned about how this works with cases.

will case makes be able to make buttons that simulate a finger touch? i mean like know how you get those gloves you can wear to use your phone without taking your gloves off? maybe they can put a new material inside so that the button recognises the press?

i'll tell ya one thing, if i can't use a case with the new iPhone then i ain't buying an iPhone.


i never use the mute switch so being able to change it to something useful would be cool.

I wish! But knowing Apple we will only get a limited option with little to no customisation options. Just look at the iPhone lockscreen. They finally did something with it but we still cannot replace or hide the damn flashlight and / or camera button!
 

PineappleCake

Suspended
Feb 18, 2023
96
252
This is true. Yet I never have a need to click near the keyboard. When I'm using trackpad, I click with my thumb on the bottom of the trackpad. So this is non-issue for me. The old trackpad without haptic engine just felt better to me. It clicked more (when press at the bottom) I would say. And I really liked how I could simply feel trackpad to "drop" down physically.
For me at least, I much prefer the haptic trackpad, less prone to failing and more precise.
 
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