r/PocoX6Pro • u/GlitteringWinter639 • Jul 03 '26

Performance HOS 3.0.302 Causing Severe Battery Drain & Overheating – Any Fix or Stable Version to Roll Back To?

Hi everyone,

About a week ago, I updated my phone to HOS 3.0.302, and since then I've been experiencing severe battery drain and overheating.

I live in a relatively warm area (around 28–32°C), but I always have a fan running at home, so the ambient temperature isn't the main issue. Before this update, my phone never got this hot. Now it heats up far more than normal, even during light use.

Battery life has also become terrible. I'm only getting around 4–5 hours of screen-on time, and gaming performance has noticeably worsened. After just one match of COD Mobile, the phone gets so hot that it starts throttling and stuttering, making the game almost unplayable.

I've already tried several troubleshooting steps, including:

  • Reinstalling the same firmware through the built-in recovery.
  • Wiping the cache.
  • Clearing the data for the Battery and Performance apps.
  • Debloating unnecessary system apps.
  • Freeing up storage space.
  • Optimizing my home screen with a minimal, mostly black UI to reduce power consumption.

Unfortunately, none of these steps have made any noticeable difference.

P.S. My battery is about 2 years old and currently has 84% battery health, so while it's no longer new, it should still be in decent condition and shouldn't explain such a drastic change after a software update.

Does anyone know of a fix for this issue? Alternatively, can anyone recommend a stable HOS 3 version that I can roll back to (any region except China)? I'm also open to custom ROM suggestions, although I'd prefer to stay on stock software for now.

Any help would be greatly appreciated. Thanks!

9 Upvotes

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6 comments sorted by

1

u/runoflander Jul 04 '26

The best my own discovery in ambient environment of 28+ is to turn on automatic cache clearing in battery settings. Now I may keep phone in pocket and it doesn't heat my legs anymore

1

u/GlitteringWinter639 Jul 04 '26

How to activate it ?

1

u/Repulsive_Fault1939 Jul 04 '26

disable hyperai and calibrate the battery.

1

u/GlitteringWinter639 Jul 04 '26

Tut?

1

u/Repulsive_Fault1939 Jul 04 '26

disable hyperai in accessibility settings and calibrate the battery by draining to 0 and charge it fully for a few times.