PS3 Downgrade Tool v1.00 By Coolshrimp Modz is Now Available

25w ago - Today Coolshrimp Modz made available a PS3 Downgrade Tool v1.00 followed by some revisions below for those interested in downgrading your PlayStation 3 console.

Download: Downgrade Tool (PS3) v1.00 Setup.exe / Downgrade Tool (PS3) v1.00 Setup.exe (Mirror) / Downgrade Tool (PS3) v1.01 Setup.exe / Downgrade Tool (PS3) v1.03 Setup.exe


  • Read, Write Support (NOR & NAND)
  • Offset & Address Support
  • Flash Teensy++ 2.0
  • Drivers and Necessary Programs
  • Install Images
  • NOR & Nand Support
  • CMD Line
  • CFW Downloads



  • First Release


  • Added Write Mode Options
  • Edited Some Text
  • Added Flow Reduilder
  • Added Diff Write
  • Bug Fix


  • Added Auto Updater
  • Updated to support 4.50 OFW
  • Added link Rogero 4.50 CFW
  • Right click (Patch nand without checking)


  • ModderFokker619

Any Bugs Please Post In This Thread.

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Comments 15 Comments - Go to Forum Thread »

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jensen76's Avatar
#15 - jensen76 - 15w ago

priteche's Avatar
#14 - priteche - 15w ago
this tool will let me downgrade my ps3 cech 4000b with 4.50 ofw to 3.55?

sikkwidditt's Avatar
#13 - sikkwidditt - 18w ago
is this tool will let me downgrade my cech 2001a model ps3 with 4.50 ofw to 3.55? without using a flasher?

vegeta777's Avatar
#12 - vegeta777 - 19w ago
I'm going to try this out and use it for software Ylod to try to fix it.

drphuz's Avatar
#11 - drphuz - 19w ago

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