PS4 5TB Upgrade Service for 9.00fw and below. Original Fat or Pro Versions Only | eBay
If you own a PS4 Running firmware 4.55 or below, you are on the current golden firmware" - Still true? : r/ps4homebrew
Brand New PlayStation 4 PS4 Fat Phat LOW FIRMWARE 1.XX 1.76 4.05 4.55 For Jailbreak Exploit, Video Gaming, Video Game Consoles, PlayStation on Carousell
10sets For PS4 firmware 4.05 4.55 5.05 WiFi Crack Module ESP8266 Serial Hen 1.4 Wireless Decoding Module Payloads Injector|Replacement Parts & Accessories| - AliExpress
PS4 jailbreak scene picking up steam with new firmware 4.55 exploits - NotebookCheck.net News
LM on Twitter: "Today I will be releasing my Update Blocker V3 with 4.55 Support including added FULL FTP Access along with Debug settings.. Full ChangeLog at Github Download + Source: https://t.co/kEd2BhbUDq
New PlayStation 4 Firmware Update 4.55 Has Been Released; Offers Even More “Stability”
Final Fantasy XIV Update Version 7.49 (PS4) Patch Notes 4.55 (PC)
PS4: How to get your hands on a PS4 with a 4.55 firmware or lower - Wololo.net