Hello I have a problem with mi4 lte - I think it is only happening on LTE network. after some time phone doesnt receive any calls (i dont get notifications that someone has called) or smses. Only after I reset the phone - suddenly i get info about missed calles and smses with information who called me. Wipe doesn't work. after i have changed to 3G network - it is ok so far but i would like to use LTE that's why I got LTE version.. any ideas what ca help? I on latest miui.