PS4 PRO Death Stranding bundle 6.70 confirmed : r/ps4homebrew
PS4: How to get your hands on a PS4 with firmware 6.72 or lower - Wololo.net
Just bought my first PS4 for $80 and the console looks brand new, with FW 6.72 ! Anything I need to know about getting into and maintaining the PS4? : r/PS4