I installed OS_Acer_4.002.14.EMEA.GEN1_A22F_LiquidE a few days ago. Right now operation system automaticly restarting itself in some calls. Especially when im going to call someone before answer. I thought it was temporary when I saw this problem. This days my phone 2 or 3 times restarting itself in a day. Please help me if there is a solution. Thank in advance..