Try paranoid Android has solid features and ver simple ones too like hover and peek, latest build is smooth and rock solid
Sent from my XT910 using XDA Premium 4 mobile app
I would also recommend paranoid android rc2 as being the most streamlined solid rom as well as cyanogenmod 11 the m7 build is pretty stable though I am using the most recent nightly build which is also running well. Both are now really stable and reliable.
I just flashed the 5.2 SK, I also have on my xt910maxx LS and RR. it is a simple rom, without so many extra features. I will give it a go to see the stability and battery life. just one question: from were can I download omniswich and active display?
Which of the version you use cus there isn't any for xt910
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