I have just bought a playstation 3 and was advised to do the system update (to version 2.52), I went on to the playstation website and downloaded the update onto a USB stick ( I do not have wireless internet) this worked fine but when i tried to download the update to my playstation it stopped loading at 64% and gave the code no. 8002F997, i tried reloading but it has done it everytime. Any one know how to solve this?