[Gradius2]

fatlip, on Jan 18 2009, 06:34 PM, said:

Definitely for the hard drive not being recognized in the BIOS. Worked exactly as expected. Popped the drive back in his machine and the RAID array rebuilt.... all good.

Thanks for report fatlip, so for 0 LBA issue it should works as expected too (since for BSY worked fine).

Gradius

Shuky, on Jan 18 2009, 06:36 PM, said:

How you suspect, is bios recognize hdd?

F3 T>/C
F3 C>Q

and there is commands;)

just mining of its...

The entire guide is on 1st page, and 1st post here.

Gradius

[Mik88]

hs_, on Jan 18 2009, 10:26 PM, said:

I have no knowledge of the HDD electronics but looking at the instructions for making the serial connection one thing worries me a bit. I see it is suggested to use 5V for powering that circuitry. This means that the serial signal logic levels to the HDD would also be 5V. I don't know what is the I/O voltage for the IC on the HDD controller board but these days they are usually 3.3V or less. If there isn't any protection on board then using 5V levels could potentially damage the I/O pins.

I agree this schematic uses zener diodes. Probably the best way is to use USB to rs232(TTL-3V3) cable like Nokia DKU-5, consult this and this

Regards

[Gradius2]

Guys keep in mind the definitive fix will be after Seagate release a stable (and fixed) firmware.

This guide intent to recovering HDDs from BSY, CC and 0 LBA states.

BSY and CC happens when the HDD isn't recognized anymore by BIOS.

0 LBA is when you see a 0GB size from your HDD, but the BIOS recognize it, but as 0GB HDD.

After this fix, you should flash the HDD with a stable, fixed and proper firmware from Seagate (lets hope they release it soon).

After all that, you're safe until the natural lifetime from HDD.

Gradius

This post has been edited by Gradius2: 18 January 2009 - 04:12 PM

[Shuky]

Mik88, on Jan 18 2009, 10:48 PM, said:

hs_, on Jan 18 2009, 10:26 PM, said:

I have no knowledge of the HDD electronics but looking at the instructions for making the serial connection one thing worries me a bit. I see it is suggested to use 5V for powering that circuitry. This means that the serial signal logic levels to the HDD would also be 5V. I don't know what is the I/O voltage for the IC on the HDD controller board but these days they are usually 3.3V or less. If there isn't any protection on board then using 5V levels could potentially damage the I/O pins.

I agree this schematic uses zener diodes. Probably the best way is to use USB to rs232(TTL-3V3) cable like Nokia DKU-5, consult this and this

Regards

yes, you must have zener reverse polarize diode....
this link http://hddguru.com/content/en/articles/200...pter-schematic/
my datacabel is build with these shematic for siemens x35 series cellphones,with batery was 3.6V..and successfully repair 0 LBA.-s yesterday.

This post has been edited by Shuky: 18 January 2009 - 04:12 PM

[Gradius2]

hs_, on Jan 18 2009, 06:26 PM, said:

I have no knowledge of the HDD electronics but looking at the instructions for making the serial connection one thing worries me a bit. I see it is suggested to use 5V for powering that circuitry. This means that the serial signal logic levels to the HDD would also be 5V. I don't know what is the I/O voltage for the IC on the HDD controller board but these days they are usually 3.3V or less. If there isn't any protection on board then using 5V levels could potentially damage the I/O pins.

Of course the input pins may be 5V tolerant or they may be other protection measures on the PCB for these pins. But if there isn't any protection and the pins aren't 5V tolerant this could be an issue.

If needed this could be solved by powering the RS-232 IC with lower supply voltage. Another way to limit the voltage could be to use zener diodes and current limiting resistors. Not sure of the appropriate values as I don't know what king logic levels the HDD interface expects.

Like I said I have no knowledge of the HDD electronics details but I just realized this potential issue as I was reading the topic and thought I'd mention it just in case.

Now I get it what you mean. Yes, the common nowdays is 3.3V, but since you'll use this for no more than 10min, it should be ok, but of course, if you don't want to risk, just use 3.3V, but you'll need to get that power from something else.

Zener diode is just to avoid + to goes to - and vice-versa, it which it would lead to a short-circuit. The only real use I see is that 1kOhms on TX line:



Gradius

This post has been edited by Gradius2: 18 January 2009 - 04:32 PM

[Gradius2]

Here is the solution for +3.3V:
http://www.sparkfun.com/commerce/product_i...products_id=114

It can output by switching 3.3V or 5V.

Accept inputs from 5V until 12V (you can go as high as 20V, but I don't recommend).

You can also get +3.3V from an ATX power supply, just use pin 1 or 2 (orange), and pin 3 for GND.

http://pinouts.ru/Po...er_pinout.shtml

http://pinouts.ru/Po...v2_pinout.shtml



Gradius

[coltrane69]

AWESOME!!! Thanks for the great guide Gradius, also thanks to Fatlip and Pichi for all their hard work and efforts. You guys rule. I'll be ordering the equipment tonight. Hopefully I'll be back up and running by next week.

[Gradius2]

Another idea is to use just this (3V):
http://www.amazon.com/Energizer%C2%AE-ECR2...y/dp/B0007P9H48

Or 2xAA batteries. A lot more easy, and simple.

Gradius

[Fuzzy_3D]

fatlip, on Jan 18 2009, 11:47 AM, said:

I have a drive on the way here now to see 100% if this works. It should be here within the hour.

G

Any updates on this?

[dilosolid]

i have a 7200.11 with the LBA0 problem
I'm trying to fix the drive but i cannot get any output from the console, i know the cable is working because i tested it with another device and i get output
anyone else has this problem too?

[cluberti]

Pinned.

[Gradius2]

cluberti, on Jan 18 2009, 11:47 PM, said:

Pinned.

Thanks.

dilosolid, on Jan 18 2009, 11:39 PM, said:

i have a 7200.11 with the LBA0 problem
I'm trying to fix the drive but i cannot get any output from the console, i know the cable is working because i tested it with another device and i get output
anyone else has this problem too?

Are you sure didn't you mixed TX with RX ?

Are you sure RS232 is configured to 38400 8 N 1 ?

Keep in mind you need a RS232 to TTL conversor/adapter, otherwise it will never works!

If all above is correct, did you pressed CTRL+Z in order to get into CMD mode ?

If so, try to disconnect the PCB from HDA, and check it.

Gradius

This post has been edited by puntoMX: 20 January 2009 - 02:37 PM

[dilosolid]

Gradius2, on Jan 18 2009, 09:53 PM, said:

dilosolid, on Jan 18 2009, 11:39 PM, said:

i have a 7200.11 with the LBA0 problem
I'm trying to fix the drive but i cannot get any output from the console, i know the cable is working because i tested it with another device and i get output
anyone else has this problem too?

Are you sure didn't you mixed TX with RX ?

Are you sure RS232 is configured to 38400 8 N 1 ?

Keep in mind you need a RS232 to TTL conversor/adapter, otherwise it will never works!

If all above is correct, did you pressed CTRL+Z in order to get into CMD mode ?

Gradius

i have try TX and RX both way

the cable i'm using is a homemade cable with the MAX232 IC and 4 capacitors
i'm 100% sure the cable is working

do i get output before i press CTRL+Z?

[Gradius2]

dilosolid, on Jan 18 2009, 11:59 PM, said:

i have try TX and RX both way

the cable i'm using is a homemade cable with the MAX232 IC and 4 capacitors
i'm 100% sure the cable is working

do i get output before i press CTRL+Z?

You should get, but you can press CTRL+Z at anytime, it doesn't hurt anything, it just let you enter CMDs.

If even after CTRL+Z you get nothing, then it might be your PCB is in halt mode (BSY-like), and you'll need to disconnect the PCB from HDA.

If even after that you continue to get nothing, there're something wrong you're doing.

Silly question, did you power up the HDD drive too ? If not, you must.

Gradius

[killerB]

Great job, Gradius2!!!

I ordered RS232 board(max232. 5V) moment ago. It will arrive within 3~4 days.

This post has been edited by killerB: 18 January 2009 - 10:51 PM

[dilosolid]

ok Gradius2
i couldn't get output from the console
but then i press CTRL-Z and got output F3 T>

now i getting this error went i try to put this command
F3 T>m0,2,2,0,0,0,0,22


LED:000000CC FAddr:0025BF67

[fatlip]

Alright peeps, I am going to try and help Gradius out by deflecting some of these questions. He has done more than enough. So feel free to PM me with these types of questions.....


Disolid;

You have a terminal session successfully. What you need to do is, disconnect power, unscrew the Circuit board from the Hard Drive Assembly case Completely using a mini TORX T6 screw driver. Connect the power to the PCB card, send a CTRL+Z to get a terminal session again, Then run the commands up to:

F2 T>
F2 T>/2
F2 2>Z
Spin Down Complete
Elapsed Time 0.147 msecs (the time will vary here)
F3 2>


Now WITH THE POWER STILL CONNECTED: screw the PCB board back on (CAREFULLY) and continue the instructions.

The more you play around in the terminal, the more likely you are to pooch your drive for good.

Thanks,
G

dilosolid, on Jan 18 2009, 09:03 PM, said:

ok Gradius2
i couldn't get output from the console
but then i press CTRL-Z and got output F3 T>

now i getting this error went i try to put this command
F3 T>m0,2,2,0,0,0,0,22


LED:000000CC FAddr:0025BF67

This post has been edited by fatlip: 18 January 2009 - 10:18 PM

[dilosolid]

maybe i got the error because i was trying to do this command m0,2,2,0,0,0,0,22 without the hard drive case on

[fatlip]

You need to be extremely careful. Copy the commands EXACTLY as on this forum. You may have pooched your drive already by simply sending the wrong command.

If you are Seeing The LED: 000000CC FAddr: 00XXXXXX Follow the Fixing BSY or CC errors aka BUSY first!!!!

,,,, MEANS ,,,, NOT ,0,0,0,

Take your time and read thoroughly!!!

dilosolid, on Jan 18 2009, 09:25 PM, said:

maybe i got the error because i was trying to do this command m0,2,2,0,0,0,0,22 without the hard drive case on

This post has been edited by fatlip: 18 January 2009 - 10:32 PM

[dilosolid]

thx Gradius2 and fatlip for the help
the drive is fixed now
another thing why the seagate serial checker say my drive is no affected went it is?