I have a ST 31000340AS with SD81 firmware and had the busy problem. I followed accurately the procedure and got m0,2,2,0,0,0,0,22 sucessful. My hard-drive is now recognized by the bios but when I want to explore it I get the following message: F:\ is not accessible The request could not be performed because of an I/O device error I have been trying to fix my HD problem for two months now since the different CA-42 cables I ordered online were not good ones and decided to use USB-RS232 + Rs232-TTL instead. It worked but I am now facing the problem as above descrided. I am getting mad! Is there any specific command I need to use when I communicate with the processor of the card. Thanks for your help.