Text Tut on 3.55 Dex
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Step 1
Make a file on your USB called PS3 Then in that file make a new file called UPDATE Then put the PS3UPDAT.pup in it.

Step 2 (Recommended)
Safely remove the USB.

Step 3 
Plug the USB in to the right had usb port.

Step 4
Go to the Settings tab on the XMB and go to System Update then Update via Storage Media. 

Step 5
You should now see 3.55 Install it and now you are on 3.55
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Why you would need to do this.

You might want to do this so you can change the firmware on your PS3.

You also might what to do this so you can change your MAC Address. (Will do a TUT on how to do that soon)

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