S4 lollipop to kitkat baseband question

[AC Question]

My Baseband is 19505XXUHOJ4.
Was this originally a kit kat phone or a lollipop phone?
I want to downgrade to kitkat but it needs to have been on kitkat originally.
Can anyone tell me how i know what version of android the phone was originally on?
Thank you.
Fenton bevan.

 

[Rukbat]

HOA7 was 5.0.1, so HOJ4 is an update to that - so Lollipop.