UPDATE: So interestingly, it looks like heat has 0 impact to my discoloration blotch. At least on my device...Lots of great replies and analysis. I agree that the underlying question here is if this impacts all 15PM or just a select few? I might stop by the Apple Store later today to take a look.
I'm also going to see if this spot "reappears" after wiping it down while the phone remains off.
I have a blue pro max and I’ve not got this. My phone is hot as it’s been on charge, so I took it out of the case and checked. Zero discolouration. Mines a UK device.
You’re here amongst us and have the problem in question. Please don’t return it just yet - enquiring minds want to know… 👍UPDATE: So interestingly, it looks like heat has 0 impact to my discoloration blotch. At least on my device...
I had my phone off for 10 minutes (which was completely cool to the touch), wiped it down with isopropyl alcohol (which temporarily removed the discoloration), then proceeded to wipe it with a microfiber cloth and the blotch instantly reappeared.
Looks to be material related and a manufacturing defect. I definitely plan on returning it, but I'm curious on what may be causing this. I absolutely suspect it's something PVD coating being incorrectly applied at the factory.
I think of it this way. If the paint on the car has blemishes but I am going to wrap it to a color of my desire then I wouldn't necessarily be overly concerned with the paint. If I am going to put a case (anything but clear) on my phone then I wouldn't necessarily be overly concerned with the band color.I can understand people bothered by an issue like this, even if only cosmetic. If the paint job of a car you just bought had blotches on it, I doubt few would say "oh well, it works OK, so...good enough."
Nice work! Interesting about the thermochromism. I have been fortunate to have no screen to finish issues but will take a look at that exact spot on my natural titanium 15 PM, especially after using it for a while to warm it up.I was watching the teardown videos right now. Next to this place where the color changes, there is obviously the motherboard. However, which component is behind the area whose color changes directly? I don't know.
View attachment 2280748
The question we are looking for an answer to is exactly about this place. What is the component I circled in red? Because there is a color change right behind this. As you can see, the part after the screw on the left is thinner and continues to the right side.
Normally I have no material knowledge. But I started researching some sources on this subject and and found the following explanation;
"Titanium changes color at different temperatures due to a phenomenon known as thermochromism. This is when a material's color changes in response to changes in temperature. In the case of titanium, the color change is caused by changes in the crystal structure of the metal as it is heated or cooled. This results in changes in the way that light is absorbed and reflected by the metal, which in turn results in changes in its color."
And I should remind you that they already see this when they are under strong light. It darkens when heated and returns to its normal color when cooled. Since it is the situation that titanium creates during a natural heat exchange process, "in my opinion" it isn't a problem to worry about.
All I want to know is what is the component I marked in red? People just sit and wait for an explanation. Why isn't anyone investigating the issue?
Looks like it impacts a lot of people but not everyone. It’s a defect given that, but I’m not sure everyone with the issue will be willing to do a return. Most people slap a case on and won’t see it and won’t care to return.Looks like mine has this too and I’m starting to see more posts about it online. Wondering how “normal” this may be.
Yep when I pick one up used I will be looking for this and sharp edges to knock the price down 😀Looks like it impacts a lot of people but not everyone. It’s a defect given that, but I’m not sure everyone with the issue will be willing to do a return. Most people slap a case on and won’t see it and won’t care to return.
If you ever plan on reselling your phone, this might be a potential concern. Or of course if you’re using your phone without a case, like how I intended.
All of the display models in the store have it.Checked mine several times for this and nothing - UK 15PM in Ti Blue (512gb).
When I read that it can depend on the angle of the light I had a really good look (why do we do this to ourselves 😂) but seriously nothing was there. Will see if I can get a pic at some point but this is my only phone!All of the display models in the store have it.
Can you check once more using a flashlight and angling the phone back and forth, or even post a pic, it’s really faint.
Thanks for checking!When I read that it can depend on the angle of the light I had a really good look (why do we do this to ourselves 😂) but seriously nothing was there. Will see if I can get a pic at some point but this is my only phone!
Yeah it’s weird and agreed you don’t have it!I had a really good look at mine and I don’t have it, checked every angle with led flashlight and the attached pic is with flash on.
Mine is a 15 Pro White Titanium UK model, is this just affecting the darker colours (Blue & Black) or does someone with Natural or White Titanium have it?
It’s very strange how exact an area is affected, almost like it was braced there whilst being PVD’d.