[Q] [HELP] Any possible to downgrade to 44s from 05Q? topic

Hi Guys,

I know a lot about rooting & flashing roms and odin only except fastboot ( I am noob for fastboot :P)

I have been facing battery drain issues regarding 05Q update. I would like to revert to 44s but how? My phone is not yet rooted neither unlock bootloader. Please let me know about your suggestions.