Gradius2

The Solution for Seagate 7200.11 HDDs

4,868 posts in this topic

Im running into a bit of trouble. When I do all this, I connect all the wires and connect the circuit to the rs232 and open up HT then put all the settings in. When I hit ctrl+z I get no response. Ive switched the tx and rx around and still nothing. Ive tested the connections and they all come back in good standings. I dont know what im doing wrong or if I have to update something?

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I will be trying to unbrick my HD later using a ca-42 or dku-5 cable...hopefully all goes well. Question though, what's the tx & rx color for these cables? thanks!

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Well, im back again.

Ive got my other problem fixed it was the tx to rx connectors.

But now another problem pops up.

Heres a pic of the error

If someone could help me out, it would be greatly appreciated.

Just post back if you need some more info.

post-253325-1248314011_thumb.jpg

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Today my hdd wouldn't boot :(.

Seems to spin up then just stop doesn't detect at BIOS. I am looking to do this procedure since I don't have any other options.

What I am wondering is I found this and wondering if it is suitable for the connections

-----------------------

http://cgi.ebay.com.au/CP2102-USB-TTL-RS23...93%3A1|294%3A50

USB Function Controller

- USB Specification 2.0 compliant; full-speed (12 Mbps)

- USB suspend states supported via SUSPEND pins

Asynchronous Serial Data BUS (UART)

- All handshaking and modem interface signals

- Data formats supported:

- Data bits: 5, 6, 7, and 8

- Stop bits: 1, 1.5, and 2

- Parity: odd, even, mark, space, no parity

- Baud rates: 300 bps to 1 Mbits

- 576 Byte receive buffer; 640 byte transmit buffer

- Hardware or X-On/X-Off handshaking supported

- Event character support

- Line break transmission

Virtual COM Port Device Drivers

- Works with Existing COM Port PC Applications

- Royalty-Free Distribution License

- Windows Vista/XP/Server 2003/2000/98SE

- Mac OS-X / OS-9

- Linux

A packet which includes:

1X CP2102 USB-RS232 Serial Convert Communication Module

1X Mini USB Cable

-------------------

It seems to have rx/tx, usb/serial connection and 3.3v/5v.

I am located in Australia and it seems a fairly cheap option as some of the others cost a lot more to post here. (my local shops don't seem to have any parts either :().

Any help would be great

Thanks, Matt

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What I am wondering is I found this and wondering if it is suitable for the connections

It's strange, that appears as a USB to RS232 converter, TTL does not appear in the product manual, on the other hand it seems like having TX and RX ports both for 3.3 and 5V level. :unsure:

If it's only a USB to RS232, it would ADDITIONALLY need a RS232 to TTL converter.

This is a "normal" USB to TTL converter, it seems to me that this one:

http://cgi.ebay.com.au/PC-USB-Serial-to-RS...=item4147957318

was already used successfully

Or one of the "Nokia" cables discussed at length in the thread.

jaclaz

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My drive is under warranty and I could get them to send me a new drive before I return mine.

Would it work to just take the board off the new drive, put it on my old one and get the data off it?

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Would it work to just take the board off the new drive, put it on my old one and get the data off it?

NO.

And you also have some probabilities to break BOTH drives.

jaclaz

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Does anyone fancy selling me their recovery cable that they are now finished with? I've had 2 abortive attempts at making one, first with a Nokia CA-42 cable that I bought off eBay, which proved to be the wrong version of the CA-42, and then with a DKU-5 cable which was useable by Hyperterminal the first time I tried but has failed to work since.

I'd be happy to pay £15 (having already forked out as much on my 2 abortive attempts thus far :( ) using paypal and am UK based. Once my drive is recovered, I'd be happy to return the cable to it's original owner or recycle it into the community as the seller sees fit.

Here's hoping...

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My HD died 4 days ago. I see that on all internet only you people here got some real suggestions on how to get it done. I'm from Croatia and if anyone else is, and has managed to fix his seagate please PM me. I would also like to buy the stuff that I need.. it is very hard for me to find all I need. Congratulations to everyone that succedeed.

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Hi there people!

I just bought a Nokia "CA-42" cable.

It seems like there is working and non-working CA-42-cable.

I would be grand if someone could help me to determine if my

cable will work. It is a genuine Nokia-cable, Made in thailand.

I´ve read somewhere on this thread (page 79 i think), who managed

to recover the data with this cable.

However, the questions are:

1) How do i know which cable is the working one? Mine isn´t recognized

when inserted in the usb-host as a new device, could it need extra power

from a battery to work?

Yes, use a 3V battery or other power source and the CA-42 cable is detected

in windows as a "Nokia Parent Phone Modem". Connect +3V to pin 5 and battery negative

to pin 1.

2) Where are the power supposed to be connected to if necessary, what pin?

The 3.3v should go in on pin 5, if you counts from the middle of the pins.

Thats is the second longest pin, that are surrounded by pins.

Apperently there are different colors on the wires, so cut the cable at the phone end and

use a multimeter to figure out which pin is connected to which cable.

Correct pinout for the Genuine Nokia CA-42 is:

Pin 1 = Ground (Black)

Pin 2 = Tx (White)

Pin 3 = Rx (Blue)

Pin 4 = ??

Pin 5 = +3.3v (Red)

Pin 6 = ?? (Yellow)

See post #1583 for further details!

Regards, KlingKlang

PM me if you need any more help with this cable..

Thanks Gradius2, Fatlip, pichi and all the rest of you who made this guide! :thumbup

Edited by KlingKlang
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I Thank you who ever came with this fixed. What worked for me was the RS232 to TTL adapter which I got on eBay for like 5$ Canadian, a RS232 cable which I got from my local electronic store for 4$ Canadian, to power the drive and the RS232 to TTL adapter I used the 5 volt of my external hard drive adaptor which is a Molex connector for IDE hard drive. And to connect the cables I used a CDROM audio cable.

At first I had issues powering the adapter since the specs on eBay says that it can be powered by 3.3v or 5v so I used a battery holder for 2 AA battery which power the RS232 to TTL adapter but was not enough to work cause I wasn’t getting anything at the HyperTerminal software when I was typing the first command which was CTRL+Z. after being frustrated for hours I try powering the RS232 to TTL adapter form a 5V current and it worked like magic. Than I had a second problem when I was reaching at command F3 2>U it kept failing. I was about to give up then I remember from another post some one mention to clean the contacts which I did when I try it was like music in the air...

I was so trying to have this issue resolved that I try replacing the PCB board from a working hard drive of the same model and that didn’t work instead I was getting knocking sounds from the drive which I worried it mess-up something inside.

I’m a programmer and I practically save everything on this drive and never thought of backing up my files, this time I’ll do it everyday!!!!

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hi guys. i need help with my HD. I have BSY error. I made all the connections. I didnot see com 2 port when running the hyperterminal. I tried com4 port which seems to be working . The problem is that once i establish connection via hyperterminal. the hyperterminal window goes crazy. It will start showing me different symbols, letters, greek letters and so on. it will keep running and ctrl z wont do anything. I am not sure why i am not getting the same screen as all other participants in this forum can see. Any help will be appreciated.

shahrose

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hi guys. i need help with my HD. I have BSY error. I made all the connections. I didnot see com 2 port when running the hyperterminal. I tried com4 port which seems to be working . The problem is that once i establish connection via hyperterminal. the hyperterminal window goes crazy. It will start showing me different symbols, letters, greek letters and so on. it will keep running and ctrl z wont do anything. I am not sure why i am not getting the same screen as all other participants in this forum can see. Any help will be appreciated.

shahrose

Most likely you have incorrect speed of the connection or, more probably, GROUNDing problems, check here:

http://www.msfn.org/board/index.php?showto...807&st=1547

http://www.msfn.org/board/index.php?showto...807&st=1661

Do loopaback tests BEFORE coonecting the disk drive.

jaclaz

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Can anyone tell me will Putty work on Vista 64?? Please... if not what should I use then?? Thx to everyone... :unsure:

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