How to find out if you PS3 is "Jailbreakable" 1st Step

How to Find Out if your PS3 is Jailbreakable!

The Latest Firmware You Can Downgrade From Is 4.53

DO THIS CHECK FIRST DO NOT SKIP THIS STEP

Locate the manufacturing date code found on the base of your ps3.
it will look like this



Where you see the “xx” part below you will see numbers on your ps3.
so the image above shows CECH-4003A but it will be in the below table as CECH-40XX the last 2 numbers do not affect whether it can be downgraded or not so we don’t need to list that part.

Now use DEFAULTDNB's PPC+ MD5 & DATE CHECK TOOL (DCT)v2.4.8.7

[spoiler=Phat/Fat Type PS3's]
CECHAxx (OK To Downgrade) NAND = Progskeet / TEENSY++ 2.0 / InFeCtuS

CECHBxx(OK To Downgrade) NAND = Progskeet / TEENSY++ 2.0 / InFeCtuS

CECHCxx(OK To Downgrade) NAND = Progskeet / TEENSY++ 2.0 / InFeCtuS

CECHExx (OK To Downgrade) NAND = Progskeet / TEENSY++ 2.0 / InFeCtuS

CECHGxx (OK To Downgrade) NAND = Progskeet / TEENSY++ 2.0 / InFeCtuS

CECHHxx(OK To Downgrade) NOR = Teensy++ 2.0 / Progskeet / E3 Flasher

CECHJxx (OK To Downgrade) NOR = Teensy++ 2.0 / Progskeet / E3 Flasher

CECHKxx (OK To Downgrade) NOR = Teensy++ 2.0 / Progskeet / E3 Flasher

CECHLxx (OK To Downgrade) NOR = Teensy++ 2.0 / Progskeet / E3 Flasher

CECHMxx(OK To Downgrade) NOR = Teensy++ 2.0 / Progskeet / E3 Flasher

CECHPxx (OK To Downgrade) NOR = Teensy++ 2.0 / Progskeet / E3 Flasher

CECHQxx (OK To Downgrade) NOR = Teensy++ 2.0 / Progskeet / E3 Flasher

DECHAxx (OK To Downgrade) [/spoiler]

[spoiler=Slime Type PS3's]
CECH-20xx(OK To Downgrade) NOR = Teensy++ 2.0 / Progskeet / E3 Flasher

CECH-21xx (OK To Downgrade) NOR = Teensy++ 2.0 / Progskeet / E3 Flasher

CECH-25xxA or B (with date code [0C] [0D] [1A] are known to be ok) NOR = Teensy++ 2.0 / Progskeet / E3 Flasher
ALL THE REST(DOUBLE CHECK THIS with MinVerChk from HERE AS SOME CANNOT BE DOWNGRADED)
[/spoiler]