PS3 Custom Firmware
Evilnat has adapted its firmware to the official version 4.92 from Sony
All features and functions from CFW 4.91.x are included
The available versions of the CFW
We basically differentiate between 2 versions:
CEX: Consumer (Retail) Version- The common version for 97% of users. So if you are not a developer, you should install this version.
DEX: Developer version. Offers many options, but rather unsuitable for home use. Predestined to brick (destroy) the PS3.
NoBD (CEX/DEX): for consoles with defective bluray drive
NoBT (CEX/DEX): for consoles with a defective bluetooth module
NoBD+NoBT (CEX/DEX): for consoles with defective bluray drive and defective bluetooth module
OC (CEX/DEX): offers some features for overlocking the RSX
Installing the firmware
If you are already on custom firmware, no matter what version, or on original firmware not higher than 3.55, you can easily install the CFW with a USB stick (FAT-32) via the XMB.
The recovery menu is not necessary for this.
However, if you have installed original firmware with a version higher than 3.55, you must first downgrade (assuming you have a suitable PS3). You can find more information about this in this post.
Maybe you are interstet in a different firmware? Original or custom, you'll of course also find it here.