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datasave



Joined: 17 Nov 2017
Posts: 436
Location: South Korea

PostPosted: Thu Aug 20, 2020 5:42    Post subject: PHISON SSD 512GB(98 3c 98 b3)
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Layout not found.

We are compressing by generating dumps, and more than 300 compressed files are likely to be made.
Can I upload it?
Сергей



Joined: 26 Aug 2005
Posts: 18102

Flash-Extractor developer

PostPosted: Thu Aug 20, 2020 8:44    Post subject:
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Yes, you can upload

May be better if i look with TW?
datasave



Joined: 17 Nov 2017
Posts: 436
Location: South Korea

PostPosted: Mon Aug 24, 2020 4:20    Post subject:
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01_01 and 01_02 Uploaded.
check please.
Сергей



Joined: 26 Aug 2005
Posts: 18102

Flash-Extractor developer

PostPosted: Thu Aug 27, 2020 19:23    Post subject:
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I read here that this controller have an "Strong ECC" algo
https://www.phison.com/images/products_datasheet/Embedded-PCIe_PS5008-E8T_202005.pdf

And here
https://www.tomshardware.com/reviews/phison-e8-nvme-ssd,5181.html

Quote:
StrongECC - StrongECC is Phison's proprietary error correction code algorithm. Compared to conventional ECC algorithms such as BCH and LDPC, StrongECC delivers sustained performance and low power consumption while performing data correction activities.

SmartECC - Errors are unavoidable because of the physical characteristics of NAND. Data recovery methodology plays an important role in the storage industry. SmartECC is Phison's proprietary RAID ECC algorithm that can recover user data from uncorrectable errors. Whenever the PS5008 detects any uncorrectable errors in a page, the data stored within this defective page can still be reconstructed by the SmartECC engine.


This mean that there is big probability to fail research

But first of all we have problems with XOR
All blocks have different xor
I need 77 and LBA patterns to continue research (both patterns)

Also there is alot of bit errors. This make me problems
datasave



Joined: 17 Nov 2017
Posts: 436
Location: South Korea

PostPosted: Mon Aug 31, 2020 12:01    Post subject:
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case close.
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