NoName USB drive.

Typical Flash recovery cases

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MasterT
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NoName USB drive.

Postby MasterT » 26.01.21, 20:48

Does anyone know pinout for this chip?

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Thank you.

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Roman_TS
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Re: NoName USB drive.

Postby Roman_TS » 26.01.21, 22:28

Hello.

You can try to parse the traces if you find the layout of CPU which is using in this drive. Here is the guide:

https://blog.acelaboratory.com/pc-3000- ... emory.html

Another option - try to check the TSOP-48 pins on the PCB and BGA pads (use BEEP mode on your multimeter). It's the way how to find the pinout and read this chip with Multiboard or with Spiderboard.
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ACELab technical support
ts.acelaboratory.com
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MasterT
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Re: NoName USB drive.

Postby MasterT » 27.01.21, 14:35

CPU is actually COB, could not find layout this way. So I traced back pinout from TSOP-48. It's actually BGA-63 if anyone else wonders.
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Roman_TS
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Re: NoName USB drive.

Postby Roman_TS » 27.01.21, 14:58

Thank you for sharing the layout. Very useful of other Flash engineers.
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MasterT
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Re: NoName USB drive.

Postby MasterT » 27.01.21, 15:30

I get chip ID EC 36 A5 C0 which is not in your database.

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Roman_TS
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Re: NoName USB drive.

Postby Roman_TS » 27.01.21, 16:19

Can you send full chip ID? You wrote just a first part.
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MasterT
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Re: NoName USB drive.

Postby MasterT » 27.01.21, 16:31

Here it is:

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MasterT
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Re: NoName USB drive.

Postby MasterT » 27.01.21, 17:53

Does it help if i add datasheet for the chip?

https://datasheetspdf.com/pdf-file/2648 ... F1208R0B/1

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Roman_TS
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Re: NoName USB drive.

Postby Roman_TS » 28.01.21, 13:31

Well, it's not a ONFI chip, and not a JDEC.

It's internal Samsung development. This chip is very-very tricky - it reads all sectors by 3 commands;

Command 00 read first 256 bytes
Command 01 read second 256 bytes
Command 50 reads the rest 16 bytes

Command 00 - is a basic command for NAND reading, while commands 01 and 50 are optional and belongs only for this chip. They are not in used and usually you can meet them in very old flash drive where the memory chip was even not a classic NAND Flash (something between NOR and NAND technology)

I'm afraid, existing tools can't read it.
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With best regards
ACELab technical support
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blog.acelaboratory.com


MasterT
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Re: NoName USB drive.

Postby MasterT » 28.01.21, 17:12

Thank you for looking into it.


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