@guardian10 Well, low level programming is somewhat more complicated than Html and requires a tool to interface with the Efi IC, that means more money into the project, with uncertain outcome. Soldering a new preprogrammed Efi IC, which you could find for sale at some eBay sellers, would be the cheapest alternative. But it's a delicate chip, it would need good soldering tools and extensive experience on board repairs. These are the alternatives, which one to choose or just give up is up to you, your selfconfidence and costs involved.