Today my Seagate hd died, my notebook does not start while it has hd connected. Could anyone tell me whether this solution works for Momentus 7200.4 (ST9320423ASG, S/N 5VJ1Q986)? I can communicate with it via RS-232, it understands Ctrl+Z and /2 but I get no response for Z or U commands (I waited for about 10 minutes).