PSX-Place on Twitter: "It's back Supporting 4.90 FIRMWARE !!!!!! The Official bguerville Ps3 Toolset: Has New OFFICIAL URL !!!! https://t.co/EtUy5UbBAz https://t.co/WNeCBKev4o" / Twitter
PlayStation 3 - Wikipedia
PSA: Don't upgrade your PS3 to 4.83 if you want to use CFW : r/emulation
PS3 Jailbreak Compatibility List - Find Perfect Jailbreak/Exploit
Downgradable PS3 Models & Base Firmware with MinVerChk | PSXHAX - PSXHACKS
Evilnat 4.88.2 CFW for PS3 Released - Hackinformer