[NotPractical]

If you're reversing this: I was curious if Google determines if your device is "affected" using the phone's serial, or the battery's serial. I've seen reports that people who replace the battery manually outside of the program still experience diminished performance. But of course that could just be because they replaced their defective battery with another defective battery.

[bmaupin]

I'm going through the kernel with Ghidra but not very good at it and not having much luck.

I do have an idea about what it's checking to determine if a battery is affected, but I don't have enough data yet to know if it's just a coincidence.

[NotPractical]

I don't imagine something like this would be implemented in the kernel? Might help to search system apps/binaries for the string displayed in the notification alert: https://raw.githubusercontent.com/nathan-contino/images/main...

[bmaupin]

Why not? The kernel seems to handle low level charging and battery logic, for example: https://android.googlesource.com/kernel/msm/+/refs/heads/and...

I'm not hoping to argue, only to learn. This isn't my area of expertise.

[NotPractical]

I should clarify that it isn't my area of expertise either; if you already found something in the kernel, by all means, keep looking there! I was more trying to suggest a starting place but it seems you're past that point already, good work :)