So i have power save settings turned on and all the setting turned on (lowest brightness, disconnect data/wifi, disable haptic feedback) when power reaches 10%, and i didnt notice it until a couple days back when i started actually testing this. When my power reaches 10% or lower, these settings never activate. I noticed that on the last versions of miui it also didn't work on my desire z. Anyone else experience this bug?? its pretty major IMO.