If your iPhone is overheating on iOS 14.5.1, 15.5 or 15.6 Beta

[JonathanParker]

If your iPhone is overheating on iOS 15.5 or 15.6 Beta.

A daemon process called “duetexpertd” might be hogging your resources (in my case using 99% or more of my CPU constantly, and my phone overheated).

To fix, sign out then sign back into your Apple ID in settings, which completely fixes it for me.

I had to do this on both of my iPhones but i’m not sure how widespread it is.

 

[MajorFubar]

Strange you posted this, I was watching a YT video on my iPhone SE2 last night (pretty rare for me) and afterwards you could cook an egg on the back (probably not literally), I've never experienced this before. Thanks for the tip.

 

[syntastic]

Having the same issue. Haven't testing this fix yet but did a complete reset of phone settings, which sucks. Waiting to see if it comes back.

 

[papbot]

Having the same issue. Haven't testing this fix yet but did a complete reset of phone settings, which sucks. Waiting to see if it comes back.

Anytime that has ever happened to me, very rare but has in the past, a forced shut down and restart almost always, if not always fixes it. No need to go through signing out of iCloud, painful at best. Sometimes some process just gets stuck running and the forced restart closes it down. Videos will cause the devices to heat up, depending on what’s actually being viewed.

 

[syntastic]

Anytime that has ever happened to me, very rare but has in the past, a forced shut down and restart almost always, if not always fixes it. No need to go through signing out of iCloud, painful at best. Sometimes some process just gets stuck running and the forced restart closes it down. Videos will cause the devices to heat up, depending on what’s actually being viewed.

I had to do a couple force restarts because the display was stuck on and was basically unresponsive. And last time this happened, I was just walking around target not even using my phone. I found out it was stuck when I pulled it out of my pocket to pay.

 

[JonathanParker]

Anytime that has ever happened to me, very rare but has in the past, a forced shut down and restart almost always, if not always fixes it. No need to go through signing out of iCloud, painful at best. Sometimes some process just gets stuck running and the forced restart closes it down. Videos will cause the devices to heat up, depending on what’s actually being viewed.

duetexpertd cannot be solved by force restarting (as in, volume up, volume down, hold power btn).