Level 1 (5 points)

16 pro overheating from literally anything

I’ve tried resetting, updating, restarting, disabling location, turning off refresh, turning off 5G. The phone will be completely cool and as soon as I turn the phone on and open any app or do literally anything the phone gets hot. Not warm, HOT. No case. No screen protector. I put a thermometer on the back glass and it reached 48° Celsius. This is when I opened the notes app.

I took it to Apple and they ran a “diagnostic” and told me that nothing is wrong. The fact I can’t even hold my phone or do anything without throttle proves otherwise. My friend has the exact same phone as me and his doesn’t do this.

Ive done every single thing google says too, factory reset, update, all of it. Is there something I’m missing? The support I got from the Apple Store was outrageous for a phone this “premium.”

Posted on Oct 21, 2026 10:32 PM

2 replies

SravanKrA

Level 10 (454,138 points)

Oct 21, 2026 10:51 PM in response to AppleUser_Marley

📱Facing iPhone heating issues? Here's what worked for me on my iPhone 12 Pro:

1️⃣ Backup on iCloud/iTunes

2️⃣ Log out of Apple ID

3️⃣ Erase (Keep eSIM Data)

❌ DO NOT restore from backups! Set up as new iPhone. Wait 2-3 days - no issue! That Indicates...

✅ No hardware/ iOS issue

Now...

📦 Restore data gradually

🔍 Find app/settings causing heat

My experience says this is purely caused by some third-party app that you may have installed.

I am not aware of the ambient temperature in which you are using the iPhone. However --> Keeping iPhone, iPad, and iPod touch within acceptable ...

Store the device where the temperature is between -20º and 45º C (-4º to 113º F). Don’t leave the device in your car, because temperatures in parked cars can exceed this range.

Use iOS devices where the ambient temperature is between 0º and 35º C (32º to 95º F). Low- or high-temperature conditions might cause the device to change its behavior to regulate its temperature. Using an iOS device in very cold conditions outside of its operating range might temporarily shorten battery life and could cause the device to turn off. Battery life will return to normal when you bring the device back to higher ambient temperatures. Using an iOS device in very hot conditions can permanently shorten battery life.

SravanKrA

Level 10 (454,138 points)

Oct 21, 2026 10:55 PM in response to AppleUser_Marley

AppleUser_Marley wrote:

My friend has the exact same phone as me and his doesn’t do this.

If your iPhone heats up while your friend’s iPhone does not, you need to compare both devices under similar conditions before concluding that there is a problem with your iPhone.

Try using the same apps that your friend uses, for a similar duration, and perform the same tasks on both devices. Also, compare the Screen Time details on both iPhones, including the apps used and the time spent on each. Ideally, try to replicate your friend’s usage pattern on your iPhone and observe whether it heats up under those conditions.

Factors such as screen brightness, background activity, network conditions, app usage, battery health, and the tasks being performed can all affect how much an iPhone heats up. Simply owning the same iPhone model does not guarantee that both devices will behave identically under different usage patterns.

If you are unwilling or unable to replicate your friend’s usage, even for testing purposes, then comparing the two iPhones is of limited value. Without testing both devices under comparable conditions, there is no reliable basis for concluding that your iPhone is overheating abnormally while your friend’s iPhone is not.

Originally posted at discussions.apple.com/thread/256380652