I have recently acquired a kiosk PS3. It is a 40gb model, and is demo version 3.01. From what i understood, being lower than 3.55 this should be a working method. (Along with the poster saying that they're 3.01 console worked)
I am trying to use this method to switch it over to retail, however, when i boot to recovery, and choose system update. It does not locate the update file on the flash drive i have in the system. I have tried both the left and right usb ports.
When i download the file, it does not end in the file extension ".pup" as i saw at some point within this thread, it instead has the extension ".7z". (reads exactly PS3MFW-KIOSK355.7z on the flash drive) Not sure if this is part of the problem?
If anyone has any info or can lend a hand i would appreciate it quite a bit.
Thanks in advance!