Tutorial: How to use PS3Xploit to hack your PS3 and go directly to Rebug 4.81.2! (Noob friendly) - Wololo.net
How To Exploit 4.84 OFW PS3 Using Miniweb and HFW 4.84.2 NAND/NOR Flash Writer Tutorial (2019) - YouTube
PS3 - 4.87.1 PS3 HFW (Hybrid Firmware) - HFW is helpful for installing PS3HEN on 4.84/4.85/4.86/4.87 FW | PSX-Place
PS3 HEN 3.0.3 Released w/ FW 4.88 Support - Hackinformer
Got all this for 90CAD. It's on version 4.81. My FAT PS3 is on 4.84 REBUG. FAT PS3 won't let me sign into PSN until I update...does another CFW exist or should