| HDD GURU FORUMS http://forum.hddguru.com/ |
|
| "dell" st4000nm016a diagnostic port locked http://forum.hddguru.com/viewtopic.php?f=11&t=44484 |
Page 1 of 1 |
| Author: | beefstrudel [ July 18th, 2024, 10:22 ] |
| Post subject: | "dell" st4000nm016a diagnostic port locked |
Does anyone know how to unlock tech mode on these drives? The ROM is not a standard Seagate ROM so PC3000 cannot patch it, F3romExplorer just crashes when I try to open it there. |
|
| Author: | Lukas [ July 18th, 2024, 11:00 ] |
| Post subject: | Re: "dell" st4000nm016a diagnostic port locked |
It would be easier to say something if you added this ROM for verification... |
|
| Author: | fzabkar [ July 18th, 2024, 11:04 ] |
| Post subject: | Re: "dell" st4000nm016a diagnostic port locked |
The only time I've seen F3romExplorer crash is when the ROM is corrupt. |
|
| Author: | beefstrudel [ July 18th, 2024, 11:39 ] | ||
| Post subject: | Re: "dell" st4000nm016a diagnostic port locked | ||
Sorry I forgot to post the ROM  I have 2 reads in this zip file, one with pc3k and one directly with an eeprom programmer
|
|||
| Author: | fzabkar [ July 18th, 2024, 12:20 ] | |||
| Post subject: | Re: "dell" st4000nm016a diagnostic port locked | |||
Offset 0 - 0x3FFFF is corrupt. I have replaced it with 0x40000 - 0x7FFFF.
|
||||
| Author: | beefstrudel [ July 18th, 2024, 12:53 ] |
| Post subject: | Re: "dell" st4000nm016a diagnostic port locked |
Thank you! Now when I try to do the tech mode unlock patch pc3k doesn't have any issues with it. But after patching I get "Flash boot code Digital Signature Verification failure! Flash boot code checksum failure!" I've tried patch type 2 as well with the same result. I'm just trying to unlock so I can edit SMP. |
|
| Author: | fzabkar [ July 18th, 2024, 13:18 ] |
| Post subject: | Re: "dell" st4000nm016a diagnostic port locked |
I expect that PC3000 will have the same problem with a ROM from a working donor. |
|
| Author: | beefstrudel [ July 18th, 2024, 13:30 ] |
| Post subject: | Re: "dell" st4000nm016a diagnostic port locked |
Unfortunately I don't have any donors for this drive on hand. The drive works and I can get a sector to read immediately after power on with the fixed ROM you posted. I just cant seem to unlock tech mode. PC3000 log says the patch went ok but the terminal just outputs that boot code signature error. Edit: I think the issue may be my PC3000 version, I only have 6.9.16 and this is a B5 Cimarron drive. |
|
| Author: | fzabkar [ July 18th, 2024, 13:35 ] |
| Post subject: | Re: "dell" st4000nm016a diagnostic port locked |
The digital signature is in the BOOTFW segment. PC3K modifies this segment to install its tech mode handshake patch. I expect that this extra code invalidates the digital signature. |
|
| Author: | beefstrudel [ July 18th, 2024, 14:07 ] |
| Post subject: | Re: "dell" st4000nm016a diagnostic port locked |
Makes sense. Thanks for the help! So frustrating being locked out of an easy fix 
|
|
| Page 1 of 1 | All times are UTC - 5 hours [ DST ] |
| Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group http://www.phpbb.com/ |
|
