On how to install and use the JTAG cable to upgrade the OS and FIRMWARE cartridges, for Sega MD e Nintendo SNES. Bought this item on Ebay: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=280506472755 (indication of KRIKzz) and I am in doubt how to use. The tutorial could have the following topics: 1 - Programs and hardware used, where to download and install. 2 - How to weld and connect the pins to the PCB and the JTAG. 3 - How to upgrade firmware and OS. 4 - Open space for doubts. Thanks guys!