Help Where does Samsung s5 store downloaded Firmware upgrades?

[FunkyMonkeyMagicMaker]

I do not want to update to this LOLLIPOP garbage which has well and truly been the culprit of bricking my phone that worked fine for 6 months prior. On an s5 where do the downloaded updates store, as I could only postpone it. I wish to remove it entirely and refuse the lollipop upgrade but now I get a postponed on my notifications all the time...