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gameboybin
 Post subject: TOSHIBA MQ01ABD050 ROM Problem
PostPosted: October 20th, 2026, 15:20 
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Joined: April 17th, 2022, 22:39
Posts: 267
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Hi everyone!
I have this Toshiba drive
It came in with not original ROM (The drive does spin and gets to Ready status. However the Serial Number and FW are all wrong from the label)

So i got the patient to gimme the original ROM
However when soldering the original ROM on. The drive doesn't even boot up
So i think the ROM must be defective or something

I need some help to check this ROM if there is any problems with it and if can extract the information from it to check if it is the original
Many Thanks!


Attachments:
Screenshot 2026-10-21 021803.png
Screenshot 2026-10-21 021803.png [ 12.83 KiB | Viewed 524 times ]
2aOboR6v0ZPKVf3duA0S5kFIjE3MUpgKzik1bo2K.jpg
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fzabkar
 Post subject: Re: TOSHIBA MQ01ABD050 ROM Problem
PostPosted: October 20th, 2026, 15:52 
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How can anyone help you if we can't see your ROM dumps?

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gameboybin
 Post subject: Re: TOSHIBA MQ01ABD050 ROM Problem
PostPosted: October 20th, 2026, 21:02 
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Totally forgot about the ROM

Here it is
https://drive.google.com/file/d/1vDqCz-sKlBXS0Fs57HqLhVYJ5ZyoVx-X/view?usp=sharing
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fzabkar
 Post subject: Re: TOSHIBA MQ01ABD050 ROM Problem
PostPosted: October 20th, 2026, 21:20 
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The checksums of the CPs seem to be OK. I'm wondering whether there is a problem in the code section. Can you upload the donor ROM?


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CPs_00.7z [10.99 KiB]
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gameboybin
 Post subject: Re: TOSHIBA MQ01ABD050 ROM Problem
PostPosted: October 20th, 2026, 22:45 
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Here is the donor rom. that the drive was spinning fine and drive gets ready but has different serial number. so i couldnt reach data
https://drive.google.com/file/d/1pmYXlwINne9KuCk_j479kQdO9nJcyQNA/view?usp=drive_link
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fzabkar
 Post subject: Re: TOSHIBA MQ01ABD050 ROM Problem
PostPosted: October 20th, 2026, 22:51 
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The donor and patient ROMs are identical, except that the donor has an additional 0x110 bytes at the end. :-?

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gameboybin
 Post subject: Re: TOSHIBA MQ01ABD050 ROM Problem
PostPosted: Yesterday, 3:19 
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fzabkar wrote:
The donor and patient ROMs are identical, except that the donor has an additional 0x110 bytes at the end. :-?



that is super strange that, 1 make the drive run and the other just hangs
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fzabkar
 Post subject: Re: TOSHIBA MQ01ABD050 ROM Problem
PostPosted: Yesterday, 7:26 
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I think that programming the SPI flash memory using the dump with those extra 0x110 bytes would result in the first 0x110 bytes of the chip being overwritten when the final address rolls over to address 0. But that would affect the donor, not the patient. :-?

In any case, you don't appear to have the original ROM, so your case is unsolvable.

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gameboybin
 Post subject: Re: TOSHIBA MQ01ABD050 ROM Problem
PostPosted: Yesterday, 12:52 
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fzabkar wrote:
I think that programming the SPI flash memory using the dump with those extra 0x110 bytes would result in the first 0x110 bytes of the chip being overwritten when the final address rolls over to address 0. But that would affect the donor, not the patient. :-?

In any case, you don't appear to have the original ROM, so your case is unsolvable.


Are the last extra 0x110 bytes in donor ROM all 00?
Can you help me fix the patient ROM by adding 0x110 bytes to the end. So they look exactly the same

Many thanks!
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fzabkar
 Post subject: Re: TOSHIBA MQ01ABD050 ROM Problem
PostPosted: Yesterday, 13:09 
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gameboybin wrote:
Are the last extra 0x110 bytes in donor ROM all 00?
Can you help me fix the patient ROM by adding 0x110 bytes to the end. So they look exactly the same

Your question makes no sense. If you want both ROM dumps to be exactly the same (why?), just rename the file or copy it.

I have no idea what the last 0x110 bytes mean. You need to examine the dump with a hex editor. I use HxD:

https://mh-nexus.de/en/hxd/

Edit:

These are the extra bytes:

Code:
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F

00080000  2D 43 6F 6E 66 69 67 75 72 61 74 69 6F 6E 2D 00  -Configuration-.
00080010  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00080020  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00080030  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00080040  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00080050  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00080060  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00080070  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00080080  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00080090  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
000800A0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
000800B0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
000800C0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
000800D0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
000800E0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
000800F0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 FF  ...............ÿ
00080100  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................

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gameboybin
 Post subject: Re: TOSHIBA MQ01ABD050 ROM Problem
PostPosted: Yesterday, 14:01 
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Joined: April 17th, 2022, 22:39
Posts: 267
Location: Vietnam
fzabkar wrote:
gameboybin wrote:
Are the last extra 0x110 bytes in donor ROM all 00?
Can you help me fix the patient ROM by adding 0x110 bytes to the end. So they look exactly the same

Your question makes no sense. If you want both ROM dumps to be exactly the same (why?), just rename the file or copy it.

I have no idea what the last 0x110 bytes mean. You need to examine the dump with a hex editor. I use HxD:

https://mh-nexus.de/en/hxd/

Edit:

These are the extra bytes:

Code:
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F

00080000  2D 43 6F 6E 66 69 67 75 72 61 74 69 6F 6E 2D 00  -Configuration-.
00080010  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00080020  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00080030  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00080040  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00080050  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00080060  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00080070  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00080080  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00080090  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
000800A0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
000800B0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
000800C0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
000800D0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
000800E0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
000800F0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 FF  ...............ÿ
00080100  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................



Quote:
Your question makes no sense. If you want both ROM dumps to be exactly the same (why?), just rename the file or copy it.

You mean they are exactly similar byte by byte just up until last 0x110 bytes?
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fzabkar
 Post subject: Re: TOSHIBA MQ01ABD050 ROM Problem
PostPosted: Yesterday, 14:05 
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gameboybin wrote:
You mean they are exactly similar byte by byte just up until last 0x110 bytes?

Yes. They are identical.

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