Custom firmware (CFW) is an unofficial version of firmware created by third parties. Unlike official firmware, CFW allows homebrew applications and ROM image backups to run directly on the game console.
Custom firmware (CFW) 4.91.2 EVILNAT (Cobra 8.5) is the latest and smoothest CFW release by Evilnet, offering enhanced functionality and compatibility. Learn how to install CFW 4.91.2 and unlock the full capabilities of your PS3.
Tested PS3 Models for CFW
PS3 FAT Models
| CECHAxx | CECHExx | CECHKxx |
| CECHBxx | CECHFxx | CECHLxx |
| CECHCxx | CECHGxx | CECHMxx |
| CECHDxx | CECHHxx | CECHNxx |
| CECHIxx | CECHJxx | CECHOxx |
| CECHPxx 0x08 | CECHQxx 0x08 |
PS3 Slim Models
| CECH-20xxA | CECH-21xxA | CECH-25xxA |
| CECH-20xxB | CECH-21xxB | CECH-25xxB |
| CECH-25xxA | CECH-25xxB |
Important Note
You can’t install CFW directly unless your console has firmware version 3.55 or below. If your PS3 has firmware above 3.55, we have a dedicated guide for that process. However, make sure your PS3 model matches the tested models below. If your model is not compatible, don’t worry—you can still install PS3 HEN.
Installation Steps
- Download CFW 4.91.2 EVILNAT
- Prepare Your USB Drive:
- Format a USB drive to FAT32.
- Create a folder named “PS3” in the root directory of the USB drive.
- Place the CFW File:
- Copy the downloaded CFW file into your USB drive’s “PS3” folder.
- Connect USB Drive to PS3:
- Insert the USB drive into the outer right USB port of your PS3 console.
- Install CFW:
- Navigate to “Settings” > “System Update” > “Update via Storage Media” on your PS3.
- Select the CFW 4.91.2 EVILNAT file from the USB drive and follow the on-screen instructions to install it.
- Restart PS3:
- Once the installation is complete, your PS3 console will restart.
Yes, you can revert to official firmware by performing a system update via the Internet. However, exercise caution and follow official instructions to avoid potential risks.
CFW 4.91.2 EVILNAT is compatible with various PS3 models. Check our supported model’s table for compatibility.
While installing CFW itself is relatively safe, running unsigned code and installing custom payloads may pose risks to your PS3 console. Ensure that you only download CFW from trusted sources and follow installation instructions carefully to minimize any potential risks.
Enhance your PlayStation 3 experience with CFW 4.91.2 EVILNAT, unlocking new features and capabilities for your console. For those with PS3 models that cannot install CFW, consider using PS3 HEN as an alternative.