i have question: are you clear what problem with your drive? or you just give it a shot if any body provide any solution?

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data recovery service[/b]

please provide the correct command steps

Which is perfect tutorial to use it with a nokia ca 42 USB Nokia data cable?

Here are repair procedures for Seagate 7200.11 drives:
http://sites.google.com/site/seagatefix/
http://www.msfn.org/board/index.php?showtopic=128807

Tutorial with photos:
http://www.overclock.net/hard-drives-st ... -pics.html

Pinout of Nokia CA-42 cable's Pop-port connector (use pins 6,7,8):
http://pinouts.ru/CellularPhones-Nokia/ ... nout.shtml

If you want to adapt this circuit ...

http://freecircuitdiagram.com/wp-conten ... verter.gif

... then another way may be to replace the 10K resistor in the base of Q1 with a 4K7 resistor and a series connected 2.7V zener diode (cathode to base). Also add a 4K7 resistor between the base and emitter of Q1. To protect the RxD input of the drive, it may be an idea to add a 2.5V zener diode between the collector and emitter of Q2 (cathode to collector).

I have fixed one hdd using the ca42 method. but one more hdd gives error R/W error in the second stage. At that stage I can also hear a tick tick sound from the hdd.

You need a pro and almost certainly a clean room for this one I am afraid.