124w ago - On this Super Bowl Sunday Brandon Wilson has released PS3Jig v1.0, which is a PS3 Factory / Service Mode Jig Dongle downgrader for the Sony PSP handheld.
He has confirmed the PS3 downgrader / Service Mode Jig PSP port can be used for <= FW3.55 homebrew and works on 1001 5.50 GEN-D CFW. For those interested, IndyColtsFan84 has also made a PS3Jig Downgrade Tutorial for PS3 Firmware 3.50 and 3.55.
To quote from his page: PS3Jig is a homebrew program for the PSP that emulates the official Sony "jig" stick for entering Factory/Service mode. All you need to do is attach a USB cable between your PS3 and PSP, run the program, and turn on your PS3, just like any other downgrade/service mode method.
AS OF THIS WRITING, THERE IS NO WAY TO EXIT FACTORY/SERVICE MODE ON PS3 FIRMWARE VERSION 3.56, SO DO NOT ATTEMPT TO USE THIS ON PS3 FIRMWARE VERSION 3.56 UNTIL YOU READ OTHERWISE ELSEWHERE!