The HDD can't be detected by PC BIOS. After checking via COM Port by using TTL converter, I read these messages:

Reset
4096k x 16 DRAM
GALAXY - 1_Disk S-6D 09-22-06_15:48
ERR Read App Code

F>R
Code - A6 Track 1599E.0.238 Sns FFF
F>R1
F>R2
F>R4
Code - A6 Track 1599E.0.238 Sns FFF
F>j
ERR App Code incompatible SFL code


The HDD can't enter others levels (e.g. /1, /2, /3, /T, etc.).
I want to get the data back.
Please help !!!

The problem didn't show "out of the blue", right ?



Any other command was INCAUTIOUSLY entered ? ( * cough ! * )



No wonder.



According to what REALLY happened, you can forget it. Let's hope for the best, but it seems the result of incautious tinkering with commands OR attempt to fiddle with the firmware / electronics.

Well,
Do You Know What These commands Do ? .

_________________
Regards
Amarbir S Dhillon , Chandigarh Data Recovery Labs [India]
Logical,Semi Physical And Physical Data Recovery
Website-> http://www.chandigarhdatarecovery.com

It is the first time I'm using the COM port to communicate with the HDD. I hope to save my private data at home.

The command R4: to read in the App Code

But it seems not work. The return code A6, refer to the info from the internet, it means "Application Code not Compatible".

I don't know what I can do next then. Help me please. Thanks a lot !!!

Vain hope.
The drive has OTHER problems and takes much more than a COM converter and hyperterminal.
Many commands of just 1 letter ( !! ) kill the drive in a flash.
And forget the internet.

Or can I buy a HDD PCB to fix the problem?
Thanks a lot !!!

No it's not the PCB unless you have already done "something" with it.

I think this is not its native pcb .

I ensure that the HDD PCB and the HDD body have not been replaced before.

Dear all, what happened to my HDD indeed? What's lost? or what to be written to it?
Can I step by step to check what tables/parameters are missing?

As long as you tell/teach me/share your experience step by step, I will try via the COM port and see what happened in my HDD. Thanks a lot !!!

I give up...

P.S. there are things money can't buy, for everything else there's MasterCard (TM)....