Unable to fix my 7200.11 MY HDD BARRACUDA 7200.11 500GB ST3500820AS FIRMWARE SD35 MADE IN THAILAND, ( WAS ATTACHED TO SEAGATE EXTERNAL FREEAGENT DESKTOP) Steps Tried 1.> Verify it is stuck in busy state, downloaded victoria 4.2 and ran a PCI scan and the busy was blinking occasionally. 2.> Verify the serial interface cable is working properly CA-42 Clone Chinese make, Blue, Red,Green White and Yellow, Ripped open the USB end connector and found that Green -> TX Red -> RX Blue-> GND Connected the cable to front USB connector of Desktop pc and it detected the USB -> UART and installed the driver from the cdrom which came with cable, the driver was Nokia CA-42 USB, no chip was mentioned. Connected TX with RX for loopback test Ran putty with 38400,8 N 1, none for hardware flow the loopback was successfull as the letters were getting echoed back on screen and when i removed the loopback the characters were not getting echoed. 3.> Inserted a thick paper between PCB and Hdd contacts and Connected TX from Cable to RX of HDD, Connected RX from Cable to TX of HDD and GND of cable to GND of HDD tried pressing CTRL + Z ( uppercase) and CTRL + z ( lowercase) .....no response Power cycle the system + HDD, no success Tried swapping the RX and TX cables , No Success Removed the paper between the PCB and HDD and Powercycle the system+HDD the putty ( terminal ) window was displaying (LED: 000000CC Faddr.........) every 1 min tried pressing CTRL + Z ( uppercase) and CTRL + z ( lowercase) .....no response , I would like you comments 1.> Since i am getting LED message in terminal window, does this means my serial interface is properly connected 2.> Do I need to add power ( 3.3v) to other pins