Updating ps3 using memory stick
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.
Head to Settings, then System Settings and finally System Information.
Move the downloaded firmware file into the UPDATE folder. From the Xross Media Bar, head over to Settings and finally to System Update.
Press X on your controller to move to the next step.
Check that the USB device is formatted to the File Format FAT 32 or FAT 16.
The Play Station 3 will not recognize NFST File Format.
For this guide there are a few requirements, all of which you should own or you would not be looking here. A storage media device, either a USB flash drive or a Memory Stick, SD Memory Card, or Compact Flash card.