i have a Seagate ST3120022A (FW:3.54) and im having a problem. I did a full scan of the drive using MHDD and there are 6 uncorrectables (in the range of 2,118,000,00).

scan ends with no problem.erase stops on the beggining of the drive as it seems that MHDD cannot write to drive (other programs cant too).
there are no clicks or sounds,the drive seems to be operating normally.
by the way,this happened after i used HDD Regenerator to fix those uncorrectables.

how to fix this?

erase

Erase?

i dont think its the solution as i said i tried to erase and it didnt work and that is the problem!

Oops,Has not seen. That stop means? Seagate long does remap.

as i said it stops in the beggining of the drive (erases nothing)
do you mean i have to do scan with remap and then it works?

i started scan with remap but after 7 hours i stopped it because i thought it wont work.

Make the scheme and show log start
http://monitor.espec.ws/files/serial_966.jpg

Sorry? i didnt get your point..

the circuit he is showing is a serial driver for an RS-232 interface. I have heard...and don't quote me...that some drives can use a serial interface to tell what is going on with the drive, even down to telling you which head is bad.

The left side input to the drawing shows a 25 pin DB connector with a 9-pin adapter on it. RxD = receive, TxD = transmit. The RTS (request to send) and DTR (data terminal ready) are typical lines on an RS-232 interface, but here they are being used to supply voltage to the 7805 regulator through two diodes. This regulator supplies +5 volts to the HIN232CP chip, which converts the +5 volts to +10 volts at the output. There's a reference on this page: http://www.anotherurl.com/library/rs232.htm#DCD

I'm guessing that Seagate has software that will communicate with your drive through the serial port. You'd have to build this circuit with the correct connector for your board.

im a computer engineer so i knew it is serial comm. interface circuit but i didnt know what to do with it really. thanks for the explaination Old Tech but this would take some time and then some more time to fix the HDD.

so the problem i have cannot be solved by software? this drive is to be recycled now?

I wouldn't go as far as to say there's nothing that can be done. I'm a newbie at this myself, but I think the point of the serial interface was to check the heads/preamp circuit. Erasing will be a function of those two and possibly further back on the drive electronics board. There are other ways to check the heads and preamp by electronics troubleshooting, but that requires an expensive oscilloscope to monitor the signals properly. An inexpensive DVM will measure the resistance of the heads for you but that requires opening up the sealed unit, which is always a risk.