It is apparently possible to revert your PS4 to its previous firmware version, without any backup - Wololo.net
How to "downgrade" a PS4: full tutorial by Modded Warfare - Wololo.net
How to "downgrade" a PS4: full tutorial by Modded Warfare - Wololo.net
ps4-downgrade · GitHub Topics · GitHub
PS4 SysGlitch Tool and SysCon Glitching Pinout by VVildCard777 | Page 6 | PSXHAX - PSXHACKS
how to downgrade ps4 firmware|TikTok Search
PS4 Downgrade Firmware 8.00/7.55 To 6.72 | Playstation 4 7.55 To 6.72 Downgrade Tutorial - YouTube
Dump syscon.Revert 8.52 to 6.72 (PS4 not Downgrade) | By Sonicps | Facebook
Scena PS4] Un nuovo video tutorial spiega come eseguire il ripristino della console PlayStation 4 ad un precedente stato di jailbreak - BiteYourConsole
How to downgrade PS4 9.50 Beta software to the previous version of the system software - YouTube