Those are all of the models you can downgrade to 3.55 with and jailbreak them. Open the Home screen of your PS3 system and select Settings > System Update from the function menu. What is CFW 4. VARIES FOR 25#* OWNERS, CHECK YOUR MINIMAL FIRMWARE HERE: Developer Evilnat has released CFW 4.89 Evilnat, a Custom Firmware for PS3s based on the latest firmware 4.89.

On the back of your console you will see CECH - #ĭown below is a list of the models that can be downgraded to 3.55 and the models that cannot be downgraded.ĬECHE0# (First model fat, chrome front, 4 USB slots)ĬECHJ0# (Fat, doesn't look much different from CECHH)ĬECHK0# (Fat, doesn't look much different from CECHH or CECHJ)ĬECHL0# (Fat, doesn't look much different from CECHH or CECHJ or CECHK)ĬECHM0# (Fat, rare PS3 so I can't provide a photo)ĬECHP0# (Fat, doesn't look much different from CECHH or CECHJ or CECHK or CECHL)ĬECH-20#* (Slim, chrome front with a blue light indicator showing that a disc is inside the console)ĬECH-21#* (Slim, identical to the CECH-20#*, almost the same)ĬECH-25#* (Slim, almost identical to CECH-20#* and CECH-21#*). To downgrade your Playstation 3 you need an E3 Flasher, but before doing so you have to make sure your console could actually be downgraded to 3.55 all different models have a different version. To jailbreak any console it MUST be on version 3.55, no other version is jailbreakable, especially the most recent version.

Custom firmware ps3