iPhone 12 Pro Overheating

Been doing a few tests the past few days and it seems that my iPhone X with 80% max capacity battery is losing a little bit more battery than the new 12 pro but at the same rate almost.

this morning an hour in after I woke up playing with both phones same apps at the same time now I’m with 92% on my 12 pro and 91% with my 10 (remind you, it’s 80% max capacity)

losing almost 10% an hour on a new phone without using any videos by the way, this is ridiculous.

I've tried to stay out of this the sky is falling thread, but you are actually quite correct. When moving data over from one phone to a new phone, especially if there is a LOT of data, such as photos in the multiple thousands, it takes a lot of indexing to move the data and that causes the battery to work hard for what can be a few days depending on the amount of data.

It will shut itself down if it truly overheats.

There is no need to "play it safe."

Heating is not a sign there is anything wrong, it is a sign the CPU is doing a lot of work, and many web pages require a huge amount of processor and graphics work.

FWIW - I wouldn't trade in based on it getting hot. The 12, 12 Pro & 12 Pro Max all have the same A14 chip and the same form factor... so I suspect they'll all present the same symptoms... and every time you restore your backup it will do the same thing for a few days.

It's literally a function of  devices working hard protect your privacy - nothing more.

I noticed that when the phone is hot it starts losing battery quite quickly. So if I pick up my cool iPhone 12 Pro and do task A, battery stays at 50% for some time (3-5 minutes) for example. I keep doing task A and the phone keeps getting hotter and hotter. Suddenly, I lose 1-2% a minute. That is not normal.

I have the same issue with overheating iPhone 12 Pro. Not sure if this issue occurs on all 12 models or only 12 pro. Mine is overheating while using or charging to the extent that it was too hot to hold in hand. I applied for replacement and just received the replacement now. Since I have seen many comments on overheating, I believe that the replacement may also experience the same issue (as common for 12 Pro). I charge with my previous charger, iPhone 11 max charge. Overheating occurs regardless of being charged or just regular usage of the phone.

I purchased a 12 pro max and I’m having the same issue with overheating. I haven’t yet updated my service to 5G, and the phone is very hot to the touch. Support claims it’s just because the phone is doing so much while restoring, but I haven’t had this issue before with other iPhones. It’s pretty bad so I’ll likely return the product.

I received my iPhone 12 pro max this morning. I experienced overheating while transferring my data from my iPhone 11 Pro Max to my new phone. I find sweaty fingers holding the back of the phone as unpleasant. I am not experiencing this problem with the 11 pro max.

Unless it shuts down and tells you it needs to cool, it's not "overheating."

Depending upon the applications running it's normal for the phone to become warm or even hot in normal use; the internal temperature sensors will shut it down if it gets too hot.

The same is true for heating during charging, especially fast charging.

I have been having the same issues! I just got my new 12 pro yesterday and have already been noticing the overheating and the battery life is not as good as they usually are when they first come out. My sister who also got a 12 pro a week ago is having similar issues. Mine was overheating today when it was plugged into CarPlay, while I was on snapchat, instagram, Facebook etc. Like you said, it's minimal usage that is causing the overheating. I'm just waiting for them to send a recall and a new phone lol. Hopefully this gets resolved quickly because mine heats up in a matter of minutes to where it is very noticeable and almost alarming. Mine doesn't even get hot when it's charging so I don't know what the issue could be.

I just upgraded from 6s Plus to 12 Pro Max and I am also noticing my phone is heating up quickly while doing normal tasks. I am not concerned at this point but I wanted to chime in to let others know it may not be unusual while it’s new.

Previously I only got the dimming-then-cool down message on two occasions: 1) iPhone 4 and 5s, BMW charger, and 2) in the middle of summer.

The latter one is solved by tossing in the pool (thanks IP68).

the former issue solved by... better charging with air flow.

lindros2 wrote:

Previously I only got the dimming-then-cool down message on two occasions: 1) iPhone 4 and 5s, BMW charger, and 2) in the middle of summer.

The latter one is solved by tossing in the pool (thanks IP68).

the former issue solved by... better charging with air flow.

You do know your iPhone is water resistant, NOT WATERPROOF. Should the phone be water damaged, your iPhone warranty does NOT cover water damage. It is MOST UNWISE to EVER submerge your phone in water. It could be a VERY expensive mistake.

So I’m running 14.2 on my 12 Pro Max, and mine starts running hot I’d say about 15 to 20 mins also. If playing a game about 5 mins. After 30 mins of playing the game starts lagging bad from the heat. Not using a case and not playing while it’s plugged in. My X never had this issue.

Yeah mine used to overheat too. I would just use it normally and it would begin to get hot. Since the iOS 14.2 update I haven’t experienced it lately. However Today my iPhone 12 pro’s screen has also periodically flickered black. I could be on Instagram, tiktok, google chrome, etc. and it’ll just pop up a black display for half a second. Not too sure why