PS3 CFW CEX Arch 4.21 Beta Custom Firmware is Now Released

34w ago - Following up on their previous release, French developers Dev-Team-SPT / ARCH have released a PS3 CFW CEX Arch 4.21 Beta Custom Firmware for those with flashers who don't mind experimenting.

To quote, roughly translated: To install this CFW you need to be on Firmware 3.55.

Beta version features:

• Bluedisk Core_OS patched CFW to 4.25 OFW aim_spu_module.self
  
• Consistent backup games 4. + Or original games
  
• SEN original connection
  
• Spoof 04.25
  
• Compatible FckPSN
  
• Ca.cer version 4.25 (except CA27.cer)
  

How install:

Warning:

• Do not install if the console has received a downgrade earlier
  
• Do not install console-DEX
  
• Install OFW from 3:55
  

Steps:

• Download and install the official firmware 3.55: http://www.filefactory.com/file/c3f2a75/n/Firmware_officiel_3.55_Retail.rar
  
• Prepare a USB stick formatted in FAT32 and create a folder called PS3, then in that same folder, create another one called "UPDATE" in which to copy the file (PUPs should be renamed PS3UPDAT.PUP).
  
• Connect the USB to the console and turn it on.
  
• Install 3.55 OFW through the XMB
  
• Once the firmware is istallatoo, download and unzip CFW 4.21 Arch
  
• Replace the PS3 folder on your USB stick into one file provided by the CFW Arch 4.21: http://www.filefactory.com/file/5jq9mdw4njqd (CFW Arch CEX 4.21 Finale version v0.1 PS3FAT / CFW Arch CEX 4.21 Finale version v0.1 PS3SLIM)
  
• Connect the USB stick to the USB port furthest to the right of your console and start the console in recovery mode
  
• Select option 6 (System Update), and follow the instructions that appear on the screen.
  
• Once finished, enjoy the CFW 4.21.
  

Update: They have now released (via ps3-solution-pour-tous.doomby.com/blog/news-ps3/cfw-arch-4-21-finale-version-0-1-for-all-ps3.html) PS3 CFW Arch CEX 4.21 Final v0.1 for both PS3 Fat and Slim consoles (above) for those interested!