Before blaming the ROM, let’s troubleshoot. Perform these steps if your phone feels "hot":
Let’s address the elephant in the room. You searched for "asus rog phone 6 custom rom hot" because you don't want to buy the $99 AeroActive Cooler 6. But here is the truth:
Most custom ROMs do not support the AeroActive Cooler.
The cooler connects via the side USB-C port and uses a proprietary protocol to enable the Peltier element (the thermoelectric cooling plate). Without ASUS’s GameCool service running, the cooler acts as a dumb fan.
While ASUS takes months to push updates, custom ROMs like crDroid, Evolution X, and LineageOS 21/22 already offer newer Android versions with better memory management.
Stock ROM comes with Game Genie, Armory Crate, and background services that drain resources. Custom ROMs strip this down.
Custom ROMs can add features, remove bloatware, and update Android versions on the ROG Phone 6, but they can also affect thermal behavior and cause higher device temperatures if not optimized. Below are practical, actionable points covering benefits, risks, causes of overheating with custom ROMs, how to choose a ROM, installation checklist, and troubleshooting steps.
Best for: Users who want the cleanest, simplest software experience.
If you are tired of gaming overlays and aggressive battery management, Pixel Experience is the gold standard. It ports the Google Pixel UI to your ROG Phone 6.
Thermal Rating: ⭐⭐⭐⭐☆ (4/5)
crDroid is the current king for ROG Phone 6. Developer neobuddy89 has merged proprietary thermal profiles from the ASUS Zenfone 9 (similar chipset).