Ive been using latest firmware. donno how to say,describe it.. because literally i am very tired using this phone. days by days, time by times. it will be more sucks. Getting hang all the time. I guaranteed my phone have less apps. still.not showing insufficient space in Security Apps. But seriously, this phone always freeze, mback button keep unfunctioning and need to rubb well before ot gettin worked. Really anoyyed. Last but not least. I aware that this meizu forum is slow down a little bit. seems like all the users maybe already fed up with the service. I dont care anymore. G mampus lah.. Gi mati lah.