74w ago - Shortly after the PS3 Firmware 4.00 Dev_Flash dump by UpSilon I have posted my method and video (below) for PS3 Demo / Kiosk console owners.

Download: PS3 Firmware 4.00 Dev_Flash Dump for PS3 Demo / Kiosk

WARNING: Modifying dev_flash can be very dangerous! USE AT YOUR OWN RISK!!!

For this you will need two hard drives a e3 flasher or similar device to downgrade your PS3 (assuming that your on firmware 4.00 and you have an e3 flasher)

• downgrade to 3.55 using the downgrade tools from e3
  
• once booted back into the xmb turn off the console
  
• swap hard drives turn on the system, press the PS button and you will be asked to reinstall the firmware
  
• place the pup file from the e3 downgrade tools in the normal PS3/UPDATE usb folder and follow the on-screen instructions to reinstall the firmware
  
• then install dev_blind.pkg & Blackb0x FTP from install packages
  
• run dev_blind then BlackB0x and FTP into the console
  
• goto /dev_blind delete everything and replace them with the files included in the download when finished...

128w ago - Here is a guide I wrote on how to convert your Demo / Kiosk PS3 into a fully functional Retail PlayStation 3 console via JailBreak using PSGrade (or similar) so that so you no longer need to enter PS3 Demo Unlock Codes in.

Also, those interested may wish to read this guide on How to Turn a Kiosk into Retail PS3 Without Downgrade via Acid CFW or Convert PS3 Demo / Kiosk to Retail - No Downgrades or Reinstalls.

How to Turn PS3 Demo / Kiosk Consoles Into Retail with JailBreak

Requirements: You will need the typical DGF (downgrade files) and a USB board with PSGrade loaded, as well as a standard USB stick.

First, we need to be able to use the jig and to do so, we need the kiosk to not auto start...