Ok im going to tell you all how to downgrade your PS3 firmware..
USB 2.0 IDE/SATA Connector
x2 USB flash drives
Firmware download (http://downloads.exophase.com/685/ps3-firmware-341)
Playstation OS download (http://us.playstation.com/support/systemupdates/ps3/pc_update/index.htm)
So first off you will need to follow playstation OS instructions
Create a folder on the storage media in which to save the update data. Using a PC, create a folder named â€œPS3â€ on the storage media or USB device. Within the PS3 folder, create a folder named â€œUPDATEâ€.Be sure to save the update data as noted below. If the data is not saved in the correct way, the PS3â„¢ system will not recognize the update data. The folder name must be in all uppercase letters.
Location: Save in the â€œPS3â€ folder > â€œUPDATEâ€ folder
File name: Save as file name â€œPS3UPDAT.PUPâ€.
Then on another USB
Save the update data to a USB mass storage device
general, the storage media must have at least 120 MB or more of free space.
Save the data to the following location on the storage media. Using a computer, create a folder named "PS3" on the storage media. Within the "PS3" folder, create a folder named "UPDATE". Save the update data in the "UPDATE" folder.
Be sure to save the update data as noted below. If the data is not saved in the correct way, the PlayStation will not recognize the update data. The folder name must be in all uppercase letters.
Location: Save in the "PS3" folder > "UPDATE" folder
File name: Save as file name "PS3UPDAT.PUP"
Then remove PS3 hdd heres the removal instructions (http://us.playstation.com/support/answer/index.htm?a_id=362)
Then you will need to reformat hdd. (http://www.ehow.com/how_6026_format-hard-drive.html)
Then remove the CMOS battery and leave it out for about 10-20 minutes to be on the safe side, and then reinstall.
you will have to open PS3 right up to get at it and note !!! THIS WILL OID YOUR WARRANTY !!!
Then reinstall HDD in to PS3
Then install OS.
Do not turn off the PS3â„¢ system or remove the storage media or USB device during an update. If an update is cancelled before completion, the system software may become damaged, and the system may require servicing or exchange.
During an update, the power button on the system front and PS button of the controller are inactive.
Insert the USB device that contains the update data in the PS3â„¢ system.
From the home menu, select (Settings) > (System Update), and then press the button.
Select [Update via Storage Media] The system automatically searches for and finds the update data saved on the storage media or USB device.Start the update. Press the button to start the update. Follow the on-screen instructions to complete the update.
Confirm that the update was successful.
After the update has been completed, go to (Settings) > (System Settings) > [System Information].
If the [System Software] field displays the version number of the update, the update was successful.
Then install firmware.
Turn on your PlayStation 3 console and insert the storage media.
From the XrossMediaBar, head over to Settings and finally to System Update. Press X on your controller to move to the next step.
Select Update via Storage Media and the system will search the drive for the PUP file.
Follow the on screen instructions to begin the update. When the update is done, your PS3 will reboot and when you come back, confirm you have the firmware update. Head to Settings, then System Settings and finally System Information. If the number showing matches the update you downloaded at the beginning of the guide, then the update was successful
You can delete the update data from the USB devices after the update has been successfully completed