[The Solution for Seagate 7200.11 HDDs]

why dont you use any gsm cable? its really easier than making whole circuit from scratch. any usb cable which detects and install as serial port (when you connect only cable without phone) will work well, rx and tx lines can be determined from phone connector pinout or just by shorting rx and tx together. then you should see what you type on terminal. if you have local echo turned on you should see all letters twice. just search any cable at home take a picture of it then i will tell you if its good or not.

is it poss to use a 12 pin SonyEricsson K750i cell phone data cable.

http://pinouts.ru/connector/12_pin_SonyEri...connector.shtml

the pinouts are:

Pin Signal Description

1 USB +5V in USB 5V supply - in K750 not used

2 SP_REF Reference

3 Mic+/AUXIN_L Microphone+ / AUX Input - left

4 Mic-/AUXIN_R Microphone- / AUX Input - right

5 DFMS/SP_L DFMS / headphone speaker - left

6 DTMS/SP_R DTMS / headphone speaker - right

7 VIDEO/STB Video / strobe

8 VPPFLASH Short to pin 9 for handsfree detection

9 GND Ground

10 CTMS / USB DATA+ CTMS / USB+ (data) - in K750 not used

11 CFMS / USB DATA- CFMS / USB- (data) - in K750 not used

12 Charge In Battery charging (+5V) - in K750 not used

Used Shortcuts:

* CTMS stands for Control To Mobile Station

* CFMS stands for Control From Mobile Station

* DTMS stands for Data To Mobile Station

* DFMS stands for Data From Mobile Station

Which pins should I use in this case - or just strip the wires and see whats there?

Thanks

Am i right in thinking that because the usb outputs 5volts i dont need a separate 3volt battery? or is 5 volts too high.

This cable wont work, buy onother one that you know work. Everything you need is listed in this topic.

Go for it

[The Solution for Seagate 7200.11 HDDs]

My data is back, and all because of Aviko's help and patience. I really hope that the fully founder of this method for unbricking drives also get all the creds. Aviko definately knows what he is doing and I cant tell how grateful I am.

Now spread this information of unbricking the disks so data wont be put in other hands.

[The Solution for Seagate 7200.11 HDDs]

Hi again,

Now i've tried the loopback test so my setup is correct.

I dont get any response from the terminal, I dont get "F3 T>", but i can type..

I placed a paper card between the motor connector and the harddiskmainboard like in post #1, attached the tx and rx cables, opened hyperterminal, and then powered on the drive, and then pushed CTRL+Z... But i don't get anything?

Anyone that can help me? Over msn maybe?

I have a 3500320AS with SD15 firmwire. And i bought i RS232-TTL usb-converter.

Turn off all, remove the PCB from HDA, power on, then try CTRL+Z.

I've unscrewed all the torx and took aside the PCB and attached the tx,rx and then power, then pushed CTRL and Z..Still the same, i only get an arrow, I can type. What to do next?

[The Solution for Seagate 7200.11 HDDs]

Hi again,

Now i've tried the loopback test so my setup is correct.

I dont get any response from the terminal, I dont get "F3 T>", but i can type..

I placed a paper card between the motor connector and the harddiskmainboard like in post #1, attached the tx and rx cables, opened hyperterminal, and then powered on the drive, and then pushed CTRL+Z... But i don't get anything?

Anyone that can help me? Over msn maybe?

I have a 3500320AS with SD15 firmwire. And i bought i RS232-TTL usb-converter.

[The Solution for Seagate 7200.11 HDDs]

Hi again,

I've just bought a ttl converter like this -> http://www.ftdichip.com/Documents/DataShee...232R3V3_v09.pdf

But when i tried yesterday it didn't work. I dont get any terminal answer. I'm wondering if i need to connect the power to the pinouts also??

If someone knows how to do, please help me..

I've connected the TX to the orange and RX to the yellow cable, do i need to do anything more?

Thanks

first of all, check terminal with shorting tx and rx together you should see what you type. i posted this information few times. and not only me.

tell model f/w and p/nof your disk.

do you have any older series of seagate disks? pcb from it is enough, if yes, connect it as in photo few pages ago and set terminal to 9600, then you will be 100% sure that everything is in place and working

I have fw SD1A and the model is 3500320AS. Okey I will try shortcircuit RX and TX, why 9600, in the main post it says 38400?

[The Solution for Seagate 7200.11 HDDs]

Hi again,

I've just bought a ttl converter like this -> http://www.ftdichip.com/Documents/DataShee...232R3V3_v09.pdf

But when i tried yesterday it didn't work. I dont get any terminal answer. I'm wondering if i need to connect the power to the pinouts also??

If someone knows how to do, please help me..

I've connected the TX to the orange and RX to the yellow cable, do i need to do anything more?

Thanks

[The Solution for Seagate 7200.11 HDDs]

Alex, are you sure the DCU-65 cable has a built-in Serial to TTL converter?

Looking at the pictures I'm pretty sure DCU-65 is too short to have a transceiver inside...

The cables that have been reported to work so far (DKU-5, CA-42, CA-45) have the USB side almost twice larger than the ones that don't.

See?

Greetings, ToKu.

Yes I understand, will buy another tomorrow then hopefully i will get my data back!

[The Solution for Seagate 7200.11 HDDs]

Alex, are you sure the DCU-65 cable has a built-in Serial to TTL converter?

Hi I don't get an answer from my terminal, i use a DCU-65 cable from my old cellphone, green conected to TX and white to RX.

I first disconnect the pcb then attach the usb, open terminal, then i plugin the power.

But i don't get any answer, but the computer seems to find something because it freezes after each try..

Any suggestions?

No I'm not sure, I just had one left and thought I could give it a try. If there is anybody out here knowing anything about unbricking with DCU-60 or 65 (SonyE computercables) please let me know, otherwise I will buy a real converter.

[The Solution for Seagate 7200.11 HDDs]

Hi I don't get an answer from my terminal, i use a DCU-65 cable from my old cellphone, green conected to TX and white to RX.

I first disconnect the pcb then attach the usb, open terminal, then i plugin the power.

But i don't get any answer, but the computer seems to find something because it freezes after each try..

Any suggestions?