Overheating and Battery Drain After Android 15 Update? Read This!

[MJ_Photography]

Hey everyone, Just wanted to share my experience after updating to Android 15. Right after the update, my Samsung phone started overheating a lot. The battery was draining super fast, and many of my apps were crashing — it was really frustrating. 

After checking things, I noticed my Barclays bank app was one of the main causes of the battery drain. But I also know that after big updates like this, it's always a good idea to do a factory reset. 

So I backed up everything and did the reset — and wow, what a difference! 

Now the phone is: Cool and not overheating Fast and smooth Battery is lasting like it should If you're having the same problems after the Android 15 update, 

I highly recommend doing a factory reset. It really fixed everything for me. Hope this helps someone out there! 

[Aeh2025]

I am sorry, but that is stupid and unprofessional, i have S23 Ultra, and i use it as my main/business phone, i have everything on it, including all Microsoft Authenticator Keys and National ID, i cannot just Factory Reset because of an update!!
It will take me forever, and i will need another devices with the existing Authenticator Accounts to re-add on the phone!
This is so un professional. 
My phone is draining 1% every minute when screen is on!
This will be my last Samsung Phone, I stopped buying Samsung since 2015, i made the mistake again in 2023 thinking they might have gotten better! But i was mistaken!

[Jarkendar]

I had this problem too with my Galaxy S24+ (European, Exynos version). It was working just fine until the Android 15/One UI 7 update earlier this year. Then it started to overheat and drain battery very quickly. I was having like 4 h of screen on time or less with normal use, barely reaching the end of the day with a full charge. Before that the phone could last 2 days with a full charge. I contacted Samsung support and they just told me to wait until the phone reoptimizes itself. Of course that did not happen. I tried many things like cleaning the cache partition, reinstalling some apps, etc. But nothing worked (I did not try a full factory reset). Then the Android 16/One UI 8 update came, but nothing changed, still the same issues.

THE SOLUTION: Finally I decided to use the warranty and I sent the phone to repair to the official Samsung Service. For the description of the problem I selected the "overheating" option and I described what I wrote here above. After two weeks I got the phone back, they acknowledged the heating issue and fixed the phone replacing "motherboard and spare parts". I guess "motherboard" includes almost all components of the phone, I doubt they can separate the processor, RAM, etc and replace just the motherboard, but they did not give me more details. In the end, the phone now works much better and similarly to how it worked originally. I now get around 50% of battery use in one normal day from 7 am to 11pm, approx 3:30 h of screen on time.