How To Downgrade/flash Your Ps3 From Firmware 3.70 To 3.55 Via Progskeet/teensy++ And Install 3.55 Kmeaw Cfw
This tutorial is long, but it is more detailed than complicated, making sure your bases are all covered.
All file downloads are either Multiupload or Mediafire.
STEP 1 – Preparation
- A PS3 (phat or slim) running PS3 original firmware 3.70 and has NOR memory, not NAND, and has ProgSkeet/Teensy++/Clone installed (click here to check if your console has NAND or NOR) – Note: This guide covers ProgSkeet install.
- Flow Rebuilder Tool [Download Here]
- Downgrade.bin [Download Here]
- Automated HEX File [Download Here]
- LV2Diag [Download Here]
- Modded LV2Diag [Download Here]
- Kmeaw CFW PUP File (3.55) [Download HERE]
- ProgSkeet Drivers and Latest Software [Download here]
STEP 2 – Some Background
If your a noob (and I assume most of you are), it may be a good idea to have some what of a idea on what NAND/NOR is. It is basically the PS3 flash memory. If you want to get a better understanding of the PS3 system and its various components, you should check this out.
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The PS3 has 256 megabytes of flash memory to store firmware, using two NAND 128MB Samsung flash chips. The installed firmware data is interleaved between the two flash chips for speed. To prevent errors, Error Correcting Code Checksum (ECC) is added/used on the data in the PS3 flash chips. In newer PS3, a single 16MB Spansion flash chip is used.
Because of the smaller flash chips in later versions, newer firmware versions allow for the firmware data to be partially stored on the harddrive (instead of totally inside the flash), making the flash purely responsible for holding data involved in the critical booting up process. This allows for cheaper flash chips, while using the harddrive for later bootup stages.
To summarize now we are going to be downgrading a PS3 via NOR flasher, so the PS3 MUST have NOR memory most PS3 units have NOR now, the stock/initial PS3s (phat) that were released had NAND, there is a chart linked above so you can make sure. As of now, all SLIMs have NOR memory so your good to go.
STEP 3 – Installing ProgSkeet
First thing is first you have to install ProgSkeet. You can install Teensy++ board as well, or any other ProgSkeet clone but I don’t know how they work and I assume you need to substitute the tools/files for Teensy++.
So there are plenty of good threads to first checkout related to ProgSkeet, for starters this is what ProgSkeet is:
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Works on various other devices (in addition to PS3) and consoles including Xbox 360 and Wii.
Here is a sample image of some ProgSkeet installs (gets you an idea what your getting into):
THERE IS CURRENTLY A SOLDERLESS CHIP IN THE MAKING, BUT AS OF NOW (8/20/2011), YOU MUST SOLDER AND PERFORM THIS METHOD IF YOU WISH TO DOWNGRADE FIRMWARE 3.70
Make sure your PS3 first has NOR memory, all SLIM PS3′s do, the older “phat” PS3 have NAND. Check if your console has NOR memory here.
Find the right pinout for your PS3 motherboard here. (Scroll down to “Pinout Gallery“). Additional ProgSkeet pinouts here. Teensy++ Pinouts located here.
Gather soldering tools, resin, and wire. Recommended gauge for wires: 24 (anything from 20-26 AWG is fine). Keep them at ~20cm each. – Note: 40/80 wire Floppy cables won’t work, to see a full list of compatible wires see this table.
STEP 4 – The NOR Dumping
Now the actual work begins and the part you all have been waiting for, the NOR dumping!
- HIGHLY RECOMMENDED: Install Windows XP on your computer. Windows 7 and Windows XP SP3 have reported many issues.
- Install ProgSkeet Software + Drivers [Download Here]
- Install Microsoft Visual C++ 2008 SP1 Redistributable Package (x86) [Download Here]
- Restart your computer.
- Launch the ProgSkeet Dumper
- Plug in your ProgSkeet and wait for for the jingle/beep
- Insert the following values for the NOR: if you have a SPANSION branded flash memory on your PS3 then: NOR Sector Size = 128kb / NOR Sectors = 128. If you have a SAMSUNG branded flash memory on your PS3 then NOR Sector Size = 4kb / NOR Sectors = 4096.
Now comes the last, and actual flashing part. Make sure you follow all the instructions above to the letter, and if you have any issues report them before continuing.
- From the ProgSkeet flasher you downloaded in step 1, flash the file you generated in step 2 #5: downgrade.bin.REV to your PS3 (make sure your PS3 is on during this process).
- If you flashed your PS3 correctly, your PS3 will reboot and show this message: “Push PS button”. DO NOT PRESS THE PS BUTTON!
- Turn off the PS3 console as we will now place it in Factory/Service mode.
- Copy these files to the ROOT (not subforulder!) of USB Mass Storage Device-: **WARNING: Make sure that this is a USB stick formatted to FAT 32. DO NOT use your MP3 player, phone, or anything except a USB stick as the timings are crucial for the downgrading process! If your having issues, we recommend you reformat your pen drive/usb drive with THIS tool.
- LV2Diag [Download Here]
- Kmeaw CFW PUP File (3.55) [Download HERE]
- Insert to right most USB port on PS3
- Now turn on your PS3 and leave it alone, the PS3 should turn off by itself in 10-15mins.
- Unplug your USB from the PS3, and turn the console back on. It should boot to the XMB menu, once it does this turn your PS3 off again.
- Now copy and replace this file on your USB: Modded LV2Diag [Download Here]
- Insert once again to the right most USB port on your PS3
- Turn on your PS3, it should turn off by itself in about ~20 seconds.
- Don’t use any USB Mass Storage Device with enhanced functions as: encryption, fingerprintreader, U3, pincode etc.
- Don’t use USB Mass Storage Devices with a long initialisation time (e.g. some MP3 players)
- Don’t use multipartitioned USB Mass Storage Devices, only use 1 single primary FAT32 partition.
- Make sure they are formatted according to specifications with FAT32 (e.g. HP USB Format Tool – or TOKIWA / Ridgecrop FAT32 formatter)
- Most USB Mass Storage Devices that’ll work effortless with PenDrive Linux, will also work with the PS3 (for downgrading, upgrading, storage of your Game dumps and any normal filestorage under the XMB). Those USB Mass Storage Devices are most likely also the ones giving you the least problems under more exotic platforms like PSX/PSone, PS2/PStwo, Xbox/X360, Gamecube/Wii etc.
Error: libusb0.dll or libusb0.sys not found
The libusb-win32 Kernel Driver needed for the the flasher to get access to the USB port was not installed. Make sure you unpacked the drivers_xxxxxx file and installed the Progskeet driver (VendorID:1988 / ProductID:0001 in case you need it).
Error: side-by-side configuration is incorrect SelectHide
In case of “the application has failed to start because its side-by-side configuration is incorrect” make sure Microsoft Visual C 9.0 runtime is installed and “Windows Installer” is not disabled (set to manual or automatic) in Services.msc.
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