Thank you fzabkar and others my ST3750330AS is working now

I just would like to express my sincere gratitude and thanks to all of you who helped with my SEAGATE ST3750330AS problem.

Seagate ST3750330AS was bricked and it was also short circuited (I assume that it happened during my initial rescue effort, as some kind of short circuit took place and rendered my PCB non working.

I had a lengthy exhange of messages in another forum with fzabkar, and as a result of that, so it was diagnosed, that the PCB needed swapping and so I purchased DONOR PCB from PCBOnline company and I let a TV/AV repair shop transplant the EPROM chip from the broken PCB to the donor PCB.

My heart was full of expectation to see if everything had worked out (fzabkar had assumed, and he was right, that the EPROM chip would probably be all right, and it proved to be so!)

I used the same cable that I had used in my first attempt, as I had caused the PCB to break down due to getting shorted. The cable was Nokia CA-42 with 5 coloured wires (White, Blue, Black, Yellow, Red).

This time I decided to get the power to the cable from 2 pieces of AAA batteries, and thus the voltage was approximately 3 volts. I connected the + of the batterypack to the Red wire and the - of the batterypack to the Black wire and I tested the loopback with different Terminal Programs prior to starting the unbricking procedue of my Seagate ST3750330AS.

The terminal programs I use to test the Loopback were as follows: 232Analyzer, RealTerm and Hyperterminal, and all of these were run in XP Home.

After running the loopback tests, I decided to start the unbricking of my Seagate ST3750330AS

During my first attempt, after having given the (Smart Erase Command) F3 1>N1 (enter) in the terminal window I did as I was adviced to do, disconnected the HDD from the power and shorly afterwards reconnected the power to the HDD in order to proceed on performing the final procedure of the unbricking process, Regenerating the partitions with the command F3 T>m0,2,2,0,0,0,0,22 (enter). I was there, where the terminal windows didn't receive any more commands, so I was puzzled as what to do next and I also posted some messages on another community forum.

Then I found out another method to try out, in order to finalize my unbricking of my Seagate HDD. But to my disappointment, that didn't help either.

Then I found out somewhere in the Internet, that I could run the "Regenerate the partitions" procedure, without having to go all the way back to when I put the papercard under the PCB and then removed it prior to spinning up to the HDD, having spun it down a few steps prior to that with the F3 2>Z command etc.

The advice given was to connect the TX and RX wires (CA-42 deriving its power from 2 AAA batteries) and start the terminal programme and go on from there.

Luckily I decided that this time I would revert to using "RealTerm" terminal programme and using that programme, I was finally able to get the Seagate ST3750330AS unbricked!!

I am so thankful, for all the help that I have been receiving throught fzabkar and also the others.

I am also willing to help out others, sending my messages to help those in similar situation as the one I was in.

Smyans