last revision, but PlayStation 3 developer @Orion90 is back with Gamesonic Manager v3.93 PS3 Game Backup Manager which now supports 4.81 Custom Firmware.
Download: Gamesonic-Manager-master.pkg (8.4 MB) / Gamesonic Manager v3.94 Beta 2
To quote from Orion90, roughly translated on the changes: Gamesonic Manager v3.93 - Added Support for CFW 4.81
After all this time we bring you an update of Gamesonic Manager that adds support for CFW 4.81 and solves some problems with the payload Mamba.
- Added support for CFW 4.81
- Payload mamba added v7.2 (no support for PS2 and PSP .... If you want to use the emu is much more
- practical to use a Cobra CFW)
- Payload discless updated with the 4.81 files