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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:

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.

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.

- 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:

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".

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

Do You use Win XP?

if- yes? that try to restart controller:

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

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!

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.