i have the same problem since i've updated to android 4.3 (officially, no root).
Since the update, my phone doesn't go into deep sleep at all because of the wakelock mdm_hsic_pm0
Does anyone know what that could be? No wifi/wlan, no gps, LTE is working 95 % of the time in my area and theres no other wakelock like fast_dormancy that keeps my phone awake.
I've tried to close almost every app in the manager, from google play services to the dropbox app, everything.
The wakelock still shows and keeps my phone alive all the time: goes from 100 % to 25 % at night - 9 h without touching the phone.
In 2 Weeks it happened to me two times that the wakelock dissappeared without me knowing what i possibly did to remove it.
It also happened two or three times that the battery didnt charge until i tried another charger - then the old one worked again too.