PS4 Update 6.72 System Download: New Sony PlayStation firmware notes, here's what it does - Daily Star
How To Update From 6.72 To 7.55 Firmware HEN/Mira Jailbreak Guide! (6.72 ⇨ 7.55 FW) | GoldHEN v1.1 - YouTube
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PS4 Jailbreak / PS4 Custom Firmware for Dummies - Wololo.net
Which firmware download for my Ps4 fat 500gb ?? Retail , testkit or recovery?? I want to update 6.20 to 6.72 for jailbreak ! Sry for noob question : r/ps4homebrew