Here's how to update your PS4 to 9.00 then Jailbreak, Much Better stability than 7.55, 7.02 or 6.72. : r/ps4homebrew
PS4 Firmware Update 6.51 Is Out
جیلبریک پلی استیشن ۴ در ورژن 6.51 - PS4 jailbreak 6.51
How I Download Free PS4 Games - Forget PS4 Jailbreak 6.72 - YouTube
PlayStation on Twitter: "PS4 system software update 8.00 drops today, featuring changes to Party and Messages, plus more flexible Parental Controls and more: https://t.co/TuSejne9wt https://t.co/jaNpnpis1s" / Twitter
PS4 Jailbreak / PS4 Custom Firmware for Dummies - Wololo.net