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[ceckin]

I messed up my flash drive with UMPTool and now instead of 4GB its showing 8MB Capacity, i opened it up, but the memory is not a standard one - its like a blob and it have a number on it - 125, no markings, no manufacture, nothing.

Controller: CBM 2093A1
Memory: Unknown, handwriting says 125

C4249-338.AOOLF

I tried flashing but the errors are: 'Write config table fail." Also before the flashing it was saying - V88, or V3387.

Thats how UMPTool sees the flash:


And thats after trying to fix it:

[_ANDY_]

1. CBM2093 = V88 - it's controller marker.

ADD514B6[UNKNOWN_FLASH-2048M] ---> detect flash error.

ADD514B6 - is a FID (Flash ID)
By the FID You can find the correct size & other parameters!
...
[117]
Brand=Hynix
FlashName=H27UAG8T2M
FID=0xAD,0xD5,0x14,0xB6,0x44,0x00
FlashType=MLC
Size=2048
MaxBank=1
CE=1
PlaneNo=2
BlockPerChip=4096
PagePerBlock=128
SectorPerPage=8
16Bit=0
MarkType=21
ECCMode=0
CMD=81
....
Use if for configure this util.
Use win XP for flashing.

[ceckin]

Thanks for your reply, but its strange cause the detected chip is only 2GB, the actual size on the Flash Drive (with FAT32) before was 3.80GB. Also i think it detects the type of the memory - V3387, but there is no such device in the list. Also i found that on the CMB chip two of the pins are soldered together, is this a anti-write technique?

Edit:

I just tried no XP, High Scan finished with this status:

1481/4096

but when i re-inserted the flash drive, it was still 8MB MBR.

[_ANDY_]

- If there are no markings on the memory module, it is a sign of Fake.
- 8MB MBR, this means that corrupted firmware.

Also i found that on the CMB chip two of the pins are soldered together, is this a anti-write technique?

- No.
Try these options:

[ceckin]

Thanks once again for taking out of your time to help me out. I tried 4 version - 2 older and 2 newer

2 older (3.3.8.7/3.3.9.1) - They can't even flash, they just fail with "Detect flash error"
2 newer (3.3.9.7/5.3.0.0) - They flash, but fail with "MP Fail, error code(12)"

And btw yes the memory chip is kind of frozen liquid on top of the board, and have no markings just a hand-written number "125".

Код [Выделить] Expand

00(H)  ADD514B6->NO_FLASH[UNKNOWN_FLASH-0M] --> MP Fail, error code(12).

[_ANDY_]

Do You use Win XP?

if- yes? that try to restart controller:

[ceckin]

Yes im using XP, also the memory chip have no indication about the pins, and it have only 20 pins (10 in every row).

[_ANDY_]

If like this:

that's a fake! capacity below 512MB! ~32MB!!!
example:
http://www.flashboot.ru/forum/index.php?topic=2537.msg29746#msg29746

try oldest utility!

[ceckin]

Yes it looks exactly like this (minus the flashing sticker on top), so i guess i should try and return it. Damn Chinese, Andy thanks for your time, you helped me a lot. Thanks.