New Flash Writter came out for 4.90(requires HFW 4.90) and it's recognized by the PS3Xploit team : r/ps3hacks

PS3 - Exploiting 4.90 OFW (Installing CFW & Running PS3HEN) Flash Writer / PS3HEN now supporting 4.90 FW

PS3] PS3Xploit Flash Writer, PyPS3tools, PS3DumpChecker and 4.90 HFW Joonie - News and updates posted on LS - GAMINGDEPUTY

How to Jailbreak PS3 using the latest HFW 4.90 and the new PS3xploit Host + Issues Explained

PS3 Homebrew - Brewology - PS3 PSP WII XBOX - Homebrew News, Saved Games, Downloads, and More!

PS3 - 4.85 Flash Writer Released (CFW PS3 Models Only) - Now go from 4.85 OFW to 4.85 HFW to a 4.85 CFW

PS3 Homebrew - Brewology - PS3 PSP WII XBOX - Homebrew News, Saved Games, Downloads, and More!

PSX-Place

PlayStation 3 homebrew - Wikipedia

Thibobo on X: Thnx to: @Joonie86 for the 4.90 HFW @lmn7frompsxplace for port of flash writer @xXEvilnatXx for 4.90 CFW @aldostools for webman mod for providing the tools to keep the ps3

PS3 - Exploiting 4.90 OFW (Installing CFW & Running PS3HEN) Flash Writer / PS3HEN now supporting 4.90 FW