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Gradius2

The Solution for Seagate 7200.11 HDDs

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I had an interesting event take place. I have a ST3750330AS, 750GB, 7200.11 with SD15. It went non-operational on me, and after a bunch of research and buying the special Nokia cable, was able to get it back to working. I next tried the Seagate Firmware update process, by creating a bootable CD, which worked well. However, when I went to update the firmware, the firmware updater showed a different drive model installed, an ST31000340AS, instead of the ST3750330AS. I advised Seagate tech support of this, and they reported that since I fixed the drive using a solution from the Internet, I had voided the warranty and they could no longer assist. Can you believe this attitude given the magnitude of a problem they created?

Anyhow, if anyone has an idea on what may have gone wrong for me, I would appreciate hearing it. Maybe it was something to do with one of the character strings that I typed in during the 'fix'. The HD does in fact work now, just unable to update the firmware.

Hi dsmithh,

Welcome to MSFN :hello:

Did you give your serial number to the tech support? If it is not now officially logged against your serial no. that you tried the "very risky internet fix", I would recommend phoning them again, this time omitting certain irrelevant information (e.g.that you did their work for them and fixed the drive). Also see if you can do the short and long test in SeaTools. If you get an error there, you can RMA the drive. Just be sure to backup your drive before you send it to them, since they won't give you the same drive back.

Failing that, just keep your cable, and use the drive as a second backup. If it fails again in a year's time, you can fix it within minutes.

Edited by BlouBul

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Hi,

Just registered to say thanks for this thread.

I've just recovered a BSY 750GB 7200.11 that was inside a FreeAgent external hard drive.

After trying a CA-42 cable that matched the exact serial no etc that other people mentioned, I had no luck at all.

I then tried...

http://cgi.ebay.co.uk/USB-TTL-serial-adapter-module-/220681115524?pt=UK_Computing_CablesConnectors_RL&hash=item33619e9784

http://www.embeddedadventures.com/shopdetails/pid/93

...and it all worked fine.

I'd definitely recommend making sure that you can do the loopback test before even connecting up you hard drive, as otherwise you're wasting your time.

The only hitch I had, was after entering 'm0,2,2,0,0,0,0,22', I got no response no matter how long I waited. I had no choice but to disconnect the SATA power (very scary), but upon reconnecting the power and performing the command again, it all worked - no idea why.

Thanks again

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Hello again everyone,

Around sep 21st I posted in this thread about my barracuda that had died.

I posted how I had little to no knowledge on this and how I was a self proclaimed doorknob.

I took to heed the tips I got from people and I bought a convertor;

A TTL-232R USB-Serial Converter 3,3V ( http://www.watterott.com/de/TTL-232R-USB-Serial-Converter-33V )

And I found via the pdf on that site the GND TX and RX wires.

So I got around to setting this up, but when I get to the point where I have to do ctrl+z in hypertherminal, nothing happens.

It is as if hypertherminal doesnt even know I have a keyboard, I mean, it doesnt even register anything that I type on it.

I do not have an external power source so I am using the PSU from my pc (via a sata cable in the bricked HD, I tried this without a sata cable to test if it powered itsself via the usb, but nothing) and I run Hypertherminal private edition via my win7 laptop.

I can hear the hdd spin down fine, but I do hear a ticking sound for a while all of a sudden, I can't remember if I had that before.

I have already tried switching the rx and tx wires but nothing. I have also firmly held down the GND wire, but nothing. I know the setup from left to right whilest the PCB board is facing upwoards is NOTHING-GND-TX-RX. It is really annoying.

I also have an issue with the jumper wires on the ttl cable, are they supposed to be so loose around the hdd's pins?

(I almost have to hold them against the hdd or they start sliding off already).

Hope you guys can help.

Thanks,

Coffeecup

Edited by Coffeecup

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Hi Coffeecup, Welcome Back :hello:

First Did you setup the converter in hyperterminal? (eg did Windows recognize the cable when you connected it and can you see the com port there?)

Did you try a loopback test? (By connecting Rx & Tx, you should see what you type in Hyperterminal (everything is echoed back) and when disconnected, nothing.)

Also, see guide by CarterinCanada http://www.mapleleafmountain.com/seagatebrick.html

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Hi Coffeecup, Welcome Back :hello:

First Did you setup the converter in hyperterminal? (eg did Windows recognize the cable when you connected it and can you see the com port there?)

Did you try a loopback test? (By connecting Rx & Tx, you should see what you type in Hyperterminal (everything is echoed back) and when disconnected, nothing.)

Also, see guide by CarterinCanada http://www.mapleleafmountain.com/seagatebrick.html

Hi there BlouBul ;)

Windows recognises the cable as an USB cable and then assigns it to COM3 (later on it started assigning it to COM4)

The first time I plugged it in it recognised it as a TTL RS232 cable, but now if I remove the driver and then connect the cable again it sais its a USB cable.

When I setup hypertherminal I make sure it is connecting to the same COM port as in device manager. I tried a loopback test, but I can get nothing to appear in hypertherminal, nothing at all. Not even when I switch RX/TX. (so no echo.)

I check the the guide by mapleleaf, problem is I dont use a breadboard or anything so I can't really use that one.

Edited by Coffeecup

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Hi there BlouBul ;)

Windows recognises the cable as an USB cable and then assigns it to COM3 (later on it started assigning it to COM4)

The first time I plugged it in it recognised it as a TTL RS232 cable, but now if I remove the driver and then connect the cable again it sais its a USB cable.

When I setup hypertherminal I make sure it is connecting to the same COM port as in device manager.

The fact that it was recognized is good (not sure if it needs to see it as ttl rs232 or usb). I think the ttl rs232 is better. Maybe try reinstalling the driver . Why did you remove the driver?

I tried a loopback test, but I can get nothing to appear in hypertherminal, nothing at all. Not even when I switch RX/TX. (so no echo.)

How did you perform the loopback test. You can't switch Rx and Tx as they should be joined together :huh:

I check the the guide by mapleleaf, problem is I dont use a breadboard or anything so I can't really use that one.

You do not need the breadboard and other scary stuff as your converter replaces all. Just use the guide for the rest of the principles.

I also have an issue with the jumper wires on the ttl cable, are they supposed to be so loose around the hdd's pins?

(I almost have to hold them against the hdd or they start sliding off already).

See if you can crimp them a little bit. By that I mean take a plier and press hard on the opening to make it smaller and thus a tighter fit. But first get the loopback right, otherwise it won't work.

Edited by BlouBul

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When I setup hypertherminal I make sure it is connecting to the same COM port as in device manager. I tried a loopback test, but I can get nothing to appear in hypertherminal, nothing at all. Not even when I switch RX/TX. (so no echo.)

Are you sure YOU are connected? (besides the loose cables) :unsure:

ALL connections should be FIRM, ALWAYS, in ANYTHING connected (pardon me the pun) to electricity or electronics.

There is NO possible way to exchange Tx and Rx in a loopback test! :w00t:

You connect the Tx with the Rx, and that is the loopback test.

Quite obviously if you connect the Rx with the Tx you have EXACTLY the same as the above. ;)

jaclaz

Edited by jaclaz

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Wait... am I not just supposed to have the 3 wires (the gnd,tx and rx) and put the gnd wire in the gnd pin, the tx wire in the rx pin and the rx wire in the tx pin? (they have female crimp pins on them)

These are the steps I took:

1. I removed the black "box" from the cable exposing the 6 wires.

2. I checked the manual and it said gnd was the black one and tx and rx where the orange and yellow wires.

3. I blocked the prb connector with a piece of thick paper.

4. I put the prb board back on (not too sturdy)

5. I connect the 3 female crimp pins to the 3 pins on the hard disk.

6. I connect my psu's sata cable.

7. I switch on my pc (only the psu is plugged in) and no hard drives are connected (except for the sata to the bricked one)

8. I wait for the hdd to spin down.

9. I plug in the other end of the r232 cable into my laptops usb port.

10. Its detected.

11. I fire up hypertherminal private edition.

12. I set connection to the same com port as displayed under device manager.

13. I make sure the number 38400 is set, and the other numbers are right aswell.

14. I establish the connection and try pressing ctrl+z.

And then nothing happens, sometimes hypertherminal private edition even hangs.

This is as far as I get.

What am I doing wrong/what did I miss?

Coffeecup

Edited by Coffeecup

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Wait... am I not just supposed to have the 3 wires (the gnd,tx and rx) and put the gnd wire in the gnd pin, the tx wire in the rx pin and the rx wire in the tx pin? (they have female crimp pins on them)

These are the steps I took:

1. I removed the black "box" from the cable exposing the 6 wires.

2. I checked the manual and it said gnd was the black one and tx and rx where the orange and yellow wires.

3. I blocked the prb connector with a piece of thick paper.

4. I put the prb board back on (not too sturdy)

5. I connect the 3 female crimp pins to the 3 pins on the hard disk.

6. I connect my psu's sata cable.

7. I switch on my pc (only the psu is plugged in) and no hard drives are connected (except for the sata to the bricked one)

8. I wait for the hdd to spin down.

9. I plug in the other end of the r232 cable into my laptops usb port.

10. Its detected.

11. I fire up hypertherminal private edition.

12. I set connection to the same com port as displayed under device manager.

13. I make sure the number 38400 is set, and the other numbers are right aswell.

14. I establish the connection and try pressing ctrl+z.

And then nothing happens, sometimes hypertherminal private edition even hangs.

This is as far as I get.

What am I doing wrong/what did I miss?

Coffeecup

Hi CoffeeCup,

Your steps are basicly right.

Before you connect the cable to your hdd, you can do a Loopback test to see if Hyperterminal can talk through your converter. That will tell you whether your converter is correctly set up or not. No use to try and connect your converter to the hdd if there is no communication.

You do the loopback test as follows: With the one end of the cable in the USB port (and the other end with the six wires not connected to anything)you connect Rx and Tx to each other (just press them together with your fingers or isolation tape). If you now type anything in Hyperterminal, it is transmitted through Tx and Received back through Rx, and you will see what you type on the screen. If you do not see anything, your converter setup is wrong.

Edited by BlouBul

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What am I doing wrong/what did I miss?

Doing BEFORE connecting the hard disk, a LOOPBACK test, as explained in point #8 of the read-me-first:

in order to make sure that:

  1. the converter is functional
  2. the orange and yellow wires (on your partular adapter) are actually Tx/Rx
  3. the PC can actually communicate with the converter

jaclaz

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Some of the MSFN users have had success with our handy USB to TTL Serial module and we also have jumper wires to connect the module to the drive. Of course, everything to do with hard drive hacking is at your own risk, but we have had some happy data-recovering users report that all went well.

regards

Ian.

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Using the same RS232 to TTL adapter as the one in this post where do I connect the + and - terminals of the battery? It looks like VCC and GND, but I'm not sure.

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It looks like VCC and GND, but I'm not sure.

Exactly.

By convention Red means +Vcc and Black means -Vcc or 0V or Ground.

If you check the photos, you will see in top photo that connections are (from left to right:Rx-I/Tx-D/GND/VCC)

In the second photo you can see that the Red wire goes to last connection (VCC) and that the black one goes to the one next to it (GND).

Please do read the read-me-first, particularly point 7.:

jaclaz

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Hi Guys,

I know this is REALLY late but here goes, first is will this erase all my data inside the disc and second is there anyone willing to sell this contraption for a reasonable price of 50$ including postage?

Thanks in advance

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Hi Guys,

I know this is REALLY late but here goes,

Not that late, drives are still bricking daily. :ph34r:

first is will this erase all my data inside the disc

No, that is why everybody is doing it :whistle: See also http://www.msfn.org/...-read-me-first/

and second is there anyone willing to sell this contraption for a reasonable price of 50$ including postage?

Thanks in advance

If you really want to pay that much, I'm sure you will find someone :whistle:

Otherwise, try the link three posts before yours or

http://cgi.ebay.com/...=item2a0895844a

or something similar See Read-me-first point #10.

Edited by BlouBul

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