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How to know if your PS3 console is down-gradable to 3.55
Tutorial Name: How to know if your PS3 console is down-gradable to 3.55
Category: PlayStation 3 Tutorials
Submitted By: Island-Time
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Related Forum: PlayStation Forum
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I have seen many questions on how to downgrade or if my PS3 can be downgraded. Here is how you know if your PS3 can be downgraded.
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 dont need to list that part.
PHAT Models
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
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
SLIM Models
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
CECH-30xx (CANNOT Downgrade)
CECH-40XX (CANNOT Downgrade)
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
CECH-30xx (CANNOT Downgrade)
CECH-40XX (CANNOT Downgrade)
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