How to get your hands on a hackable PS5 model - Wololo.net
How To Get Debug Settings Using BD-JB On PS5 3.00 - 4.51 - YouTube
PS5 System Software Update 21.02-04.51.00 - March 8th 2022 - Fortnite Insider
PS5 4.51 (21.02-04.51.00) 固件发布
4.51 firmware support added for PS5 kernel exploit/stability increased : r/ps5homebrew
According to theflow0 disclosure for BD-JB exploit, here is some table chart which exploit is working and which exploit is not working for each console PS4 and PS5 with their respective firmware :
How to get your hands on a hackable PS5 model - Wololo.net