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aggc123
 Post subject: ST12000NM005GFirmware update
PostPosted: May 31st, 2026, 14:44 
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Joined: July 25th, 2024, 6:36
Posts: 26
Location: 美国加利福利亚州
Hello everyone, I would like to ask how to convert Dell fwh firmware files into lod files.


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SWM
 Post subject: Re: ST12000NM005GFirmware update
PostPosted: May 31st, 2026, 15:27 
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Joined: February 22nd, 2023, 13:49
Posts: 327
Location: Eastern Europe
Delete DEL header.


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fzabkar
 Post subject: Re: ST12000NM005GFirmware update
PostPosted: May 31st, 2026, 17:46 
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Joined: September 8th, 2009, 18:21
Posts: 16955
Location: Australia
SWM wrote:
Delete DEL header.

Does it matter that your edit effectively results in the digital signature (at the end of .fwh) now falling outside the range of the .LOD file?

Code:
Offset(h) 00       04       08       0C

00000100  E71A0E59 01000200 00000000 00001900
00000110  00000000 00000000 00000000 00000000
00000120  00000000 00A02400 00000000 00000000
                   ^^^^^^^^
                   size of payload = 0x24A000

00000130  00000000 00000000 00000000 0000CBEB


Code:
Offset(h) 00       04       08       0C

00000140  00000000 00000000 00000000 00000700
00000150  40010000 00000000 00000000 00000000
00000160  00000000 009E2400 00000000 00000000
                   ^^^^^^^^
                   size of payload = 0x249E00

00000170  00000000 00000000 00000000 00009560

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aggc123
 Post subject: Re: ST12000NM005GFirmware update
PostPosted: June 1st, 2026, 1:03 
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Joined: July 25th, 2024, 6:36
Posts: 26
Location: 美国加利福利亚州
SWM wrote:
Delete DEL header.

Dear Mr. SWM, how do you do? I have deleted the DEL header according to your method, but I still can't update the firmware. Is this due to a lack of verification? Could you please check it for me? The lod file I generated is as follows.


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fzabkar
 Post subject: Re: ST12000NM005GFirmware update
PostPosted: June 1st, 2026, 11:25 
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Joined: September 8th, 2009, 18:21
Posts: 16955
Location: Australia
I would strip off the first 0x100 bytes. That said, I wouldn't use Dell firmware on a standard retail drive or any non-Dell drive. A firmware update typically targets only a few of the many firmware modules, so you may introduce compatibility problems with existing modules.

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