Original topic:

S23 Temperature Throttling after Factory Reset

(Topic created: 07-11-2025 12:48 PM)
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zenfaust
Asteroid
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Galaxy S23
Hey,
 
I've been having pretty bad heat issues with my base s23 ever since the one ui 7 update, and I'm not sure what to do... hoping all have some advice, or maybe can confirm similar issues?
 
I'm being constantly temp throttled doing basic tasks, even just typing here has my phone at 50ยฐC... this never used to happen. I cleared the cache, tried light performance profile, turned down refresh rate and screen brightness, stopped using 5g, turned off ram+, etc etc. None of this worked.
 
I eventually did a factory reset with no setting transfered, to make sure I didn't carry over problems. Then I reapplied light profile, dark mode, and all the stuff above. I did not install anything new and gave the phone a week to settle in.
 
Still no dice. Phone cooks if I do even the lightest of work on it, and also boils itself every time I restart it... current temp record for that is 97ยฐC. It's worth mentioning that my battery life is fine, it's only a heat issue. As far as I can tell, there's nothing running in the background that's causing this (at least that I know how to check for) and I live in a cool climate... so its not an already hot enviroment. I'm at my wits end with this. 
 
Also notable: after every adjustment, like turning on light performance profile for example, the temps stayed EXACTLY the same across all tasks. You would think that it would help at least a tiny bit? But nothing I try moves the temps even the tiniest amount. Could the problem be some new feature running in the background? Maybe the ai or something?
 
Is there anything else I can try? My phone was cool as a cucumber for two years straight before this most recent ui update, so I know it *can* run cool. I just can't get it there anymore. Any advice would be greatly appreciated...
 
 
 
12 Replies
A42YearOldArab
Cosmic Ray
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Galaxy S23
Sadly this seems to be common. My s23U was having issues (getting progressively worse after the 6.1 update) so I picked up the s25U, the same reason I got the s23U was because my s22U did the same thing. If they're not doing it on purpose, I am getting pretty unlucky with so many "bad ones". So this time I waited till now (a few months into the cycle) to avoid getting an early / "bad one". If it happens again well fool me once shame on you, fool me a 3rd time and I get a OnePlus.

Like you, whenever I looked up things online I'd get told nonsense like "mine is working fine yours must be defective" so while I don't offer any help, I can at least help you confirm you are not alone.
zenfaust
Asteroid
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Galaxy S23

Man, that's unfortunate to hear... it doesn't inspire hope that Samsung will actually resolve this issue with an update. I have literally uninstalled everything that the phone will let me, then rebooted into safe mode to disable all but the bare-bones needed to run the phone. And *still* the phone cooks.

I'm convinced at this point that maybe my update installed fishy somehow... I cant figure any other reason why some peoples phones are still working fine. I have family with a-series phones that are handling this update fine. It's outrageous that this $800 phone is now trashed with no path forward to repair it.

But I can't figure a way to roll back my software and let it reinstall the patch again. 

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Darkling
Constellation
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Galaxy S23
After I did the update my phone goes so slow I am going to end up chucking it off a cliff (drives me insane), gets SO [insert bad word here] hot, native camera app (which has always been broken/never working right) is even more broken and now you can't even see if there is an update available for it, the battery drains so quick that it made me think there was some kind of spyware/malware/virus but did an intense comb-through and found nothing (I'm in the field for that kind of thing so definitely know what im doing on that front), used to have 5G all the time now I barely get 4 LTE.....

like what in the poop?! And I see sooooooo many posting the exact same story with alllllll Samsung devices after this update. Where is Samsungs notice to consumers? Are they even TRYING to action on these-- is there only 1 person debugging this issue?!?ยฟ


Device: Samsung Galaxy S21 Fe 5G
Carrier: T-mobile
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