Galaxy Note 5 SM-N920C- Will Not Deep Sleep- Tried Flashing Other ROMs

Hi . I have SM-N920C and my phone does not go to deep sleep . I have used smart switch reinstalled firmware also i flash other firmwares with odin but nothing helps . Android os and Android system are draining battery . I have not installed any apps , turned of WIFI GPS SYNC and disabled all the apps . I am not rooted