[Mike]

Hi,

Has anyone had a chip with above marking; No other markings are on the NAND.,

Read ID gives: 0xEC 0XD5 0x14 0xB6 so it looks like a SAMSUNG

I managed to read using K9K4G08 and found FAT sector indicating a 4 GB partition.

Using K9K4G08 and 512 MB bank size I can read ID on 4 banks.

First bank DATA reads ok, other banks read with multiple DIFF errors.


Mike

[Сергей]

Two first bytes equal to:

[Mike]

Thanks for the reply Sergei,

Sorry, I should have mentioned that there are two chips like this..

The customer does not know the size and sent us only the board. Looking at the Boot sector is shows a FAT32 partition of approx 7,900,000 sectors as so it looks like a 4 GB..

Mike

[Сергей]

Ok then we have 2 chips by 2GB.

Try use K9LAG08 with 1 bank

[Mike]

Hi Sergei,

I tried the cfg you receommended however the chip seems to have two banks. The second half of the dump is the same as the first half.

I tried changing the size to 1024 and reading in two banks, however on the second bank on both chips I get the bank mainly 0x30

When reading ID I can read ok on 4 banks, however, splitting the dumps into 512 MB dumps shows different data. So I think that it is split into 2x 1GB banks, but I think it's going to be a guess on the parameters for the second bank.

Mike

[Сергей]

You are right.

[Mike]

Hi Sergei,

I have come to the conclusion that the memory stick is a fake 4 gb using 2 x 1 GB chips. Using all possible settings results with the second dump from both chips either identical to the first half, or full of garbage.

Thanks for you help though.. Appreciated.

Mike

[Сергей]

We see so much fake memory sticks last time...