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sirosaki



Joined: 03 Apr 2015
Posts: 506


PostPosted: Mon Jan 10, 2022 10:53    Post subject: PS2251-07-6 0x983a98a3 16GB
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ECC complete for PS2251-v 1151_1143.
i can not remove mix.
need your help.

- Media type : USB
- Controller : PS2251-07-6
- Flash chips ID : 0x983a98a3
- Flash capacity : 16GB
- Flash chip type : TSOP48
- Chips amount : 2EA
- Dumps amount : 2EA

Dumps are uploading...
IMG_3717 (5)_LI.jpg
IMG_3716 (5)_LI.jpg
sirosaki



Joined: 03 Apr 2015
Posts: 506


PostPosted: Mon Jan 10, 2022 15:14    Post subject:
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upload done.
Сергей



Joined: 26 Aug 2005
Posts: 19174

Flash-Extractor developer

PostPosted: Mon Jan 10, 2022 23:31    Post subject:
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Please, add read order numbers on photo
Сергей



Joined: 26 Aug 2005
Posts: 19174

Flash-Extractor developer

PostPosted: Tue Jan 11, 2022 1:09    Post subject:
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Must be something like this

Job.txt attached

But i think 70% files will be broken

Because there is green / grey lines on ECC map
Part of mix is missing

Job.rar
 Description:

Download
 Filename:  Job.rar
 Filesize:  421 Bytes
 Downloaded:  16 Time(s)

jimb



Joined: 18 Apr 2012
Posts: 56
Location: Japan

PostPosted: Tue Jan 11, 2022 10:44    Post subject:
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Quote:
Because there is green / grey lines on ECC map
Part of mix is missing


Could this be a missing even-odd page stripe?

On other controllers, I have seen green-grey lines on ECC map. These sometime appear because an image block is split, with even pages in one dump block, and odd pages in a different dump block. Pages are typically 0x4000 bytes or 32 sectors.

To check:
a) Set Block Properties: Scan Offset to 0; Scan; then make a Listing and save to file Listing-00.txt
(listing of dump blocks with even pages)
b) Set Block Properties: Scan Offset to 32; Scan; then make a Listing and save to file Listing-32.txt
(listing of dump blocks with odd pages)
c) Compare Listing-00.txt and Listing-32.txt. Look for differences, where the same image block number appears in different dump blocks. These are where the green-grey lines appear.
d) If you find two different dump blocks with the same image bank/block number, compare the page data to see if they "match" or go together.
e) If a match, stripe the two dump blocks outside of FE, and put the result into FE's Image folder, as "Address.image"
f) Open Image in FE and Check Files to see if there is any improvement.

Hope this helps,
jimb.
Сергей



Joined: 26 Aug 2005
Posts: 19174

Flash-Extractor developer

PostPosted: Wed Jan 12, 2022 0:02    Post subject:
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Yes, possible

But i do not see it on PS controllers
jimb



Joined: 18 Apr 2012
Posts: 56
Location: Japan

PostPosted: Wed Jan 12, 2022 4:34    Post subject:
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I have seen mostly on SM SM3267L-AE and Toshiba TC58NC6623G6F controllers, but twice on PS: PS2251-68-5 and PS2251-09-V.
Сергей



Joined: 26 Aug 2005
Posts: 19174

Flash-Extractor developer

PostPosted: Thu Jan 13, 2022 23:22    Post subject:
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i made for sirosaki test Job.txt for such case

He will tell if it help
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