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Ognian / sdmon

get SD card health data
https://www.ogi-it.com/portfolio/sdmon/
GNU General Public License v2.0
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LD MicroSD - noname card but answers on CMD56. No idea what it is though... #18

Open vladkozlov69 opened 11 months ago

vladkozlov69 commented 11 months ago

Several years ago I bought some LD cards. These were pretty cheap so were collecting dust waiting when I need a spare card.

Screenshot 2023-12-11 at 2 45 08 PM

Few days ago I was experimenting with CMD56 (actually I was testing some Rust bindings for ioctl), and this card was chosen as a prey. Aaaaaand... It responds to CMD56 with argument 0x00000001 as well as smart-reading sequence (0x00000010 + 0x00000021) with the very same result:

FA B8 00 10 8E D0 BC 00 B0 B8 00 00 8E D8 8E C0
FB BE 00 7C BF 00 06 B9 00 02 F3 A4 EA 21 06 00
00 BE BE 07 38 04 75 0B 83 C6 10 81 FE FE 07 75
F3 EB 16 B4 02 B0 01 BB 00 7C B2 80 8A 74 01 8B
4C 02 CD 13 EA 00 7C 00 00 EB FE 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 A1 F7 C0 60 00 00 00 00
41 00 83 03 20 FF 00 80 00 00 00 00 B4 03 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 AA

As it does not looks like just a noise (we can definitely see areas with data and areas with zeros), I'm curious: what is it? Maybe somebody already experimented with different crap-from-the-shelf and have seen the similar signature/pattern?

ugurkrl commented 10 months ago

Can you try smi sd flash id program to identify controller? (http://vlo.name:3000/ssdtool/) Output looks similiar to smi controllers in my opinion.