mohsenn94

Hello to everybody, I'm new in this forum and I hope to find some help. Excuse me if my english is not perfect, I write from Italy. I got a STM3500418AS drive with original firmware version CC34, I downloaded the firmware update from here: http://seagate.custkb.com/seagate/crm/selfservice/search.jsp?DocId=213911&NewLang=en The firmware update utility detected my drive and said it was eligible for the update, I proceeded but after a few seconds a "beep" sound came out from the PC and everything was frozen. After waiting 30 mins I had to reboot the PC and realize that my drive was no more recognized by the MB. Yes, I know I did not 1 but actually 2 stupid things: updating the firmware of a perfectly working drive and not backing up my data before doing it. It's all my fault, but now I'm looking for the cheapest way to recover my data. As a first attempt, I connected the PCB to a serial-to-TTL interface and I used Windows XP hyper terminal, trying to fix the drive using the procedure for the Barracuda 7200.11 in BSY state. My drive is the 7200.12 serie and so it didn't work. The PCB just responded with error messages. please help me Thank you in advance