USB Flash memory "corruped CHIP is possible"

[zebong]

Hi to all,

Have a USB 1Gb stick that came to me with the first sectors OK,

But from the sector xx to the end, when i edit the sectors it have all like the picture.

Can be corrupetd chip, is possible to get anything here

usb.jpg (103.39 KiB) Viewed 12417 times

Thanks
ZeBong

[pcimage]

Sector xx?

How many?

[zebong]

Sector 0 and 32 , 38 , 44 , 70 with data ( fat32)

the rest is "00"

with data from sector 4644 to 5080

from 5081 to 5098 with "00"

from 5099 to 2 044 414 with "FF"

Last sector 2 044 415 "00"

Have this when editing the sectors.

[pepe]

seems it is almost empty, probably hardly ever used. Doesn't seem like corrupted, u could not read from it in that case.

[pcimage]

Either that or wiped.

Have you actually tried a s/w recovery?

[zebong]

Yes the first thing to do.

Just appear one file but is not completed.

something happen and all the rest it looks like wipe out.

[HardDiskBug]

Someone may have tried poking in it with it's production tool, and have re-written the controller Info?

It happens in that cases..

[dick]

How are you reading the data? Directly from the stick or with the chip removed in a programmer?

Have you tried to rework the soldered connections to the memory chip/s? I would try that next.

[zebong]

How are you reading the data? Directly from the stick or with the chip removed in a programmer?

Have you tried to rework the soldered connections to the memory chip/s? I would try that next.

I am reading directly from the stick.
Will try that.
Can be the algorithum / encryption , have some problem ?