Can't format flash drive

[iVikD]

Hi, I've been trying to format a flash drive, but always get an error when trying to format.
The error reads "Unable to write to last block of the device."
Here's some screenies of a verification and attempt at repair.

Any reason why it's like this? Any way to fix this drive?
Thanks.

 

[Weaselboy]

You might try going to the next tab over in Disk Util and remove the existing partition (U3) and then add back a new partition.

 

[iVikD]

You might try going to the next tab over in Disk Util and remove the existing partition (U3) and then add back a new partition.

Tried, get same "can't write to last block" error.

 

[Weaselboy]

Tried, get same "can't write to last block" error.

Hmm... did it ever work or is this a new USB key?

Sandisk was doing some wierd things with hidden partition on their USB keys as part of some sort of auto start software they had. There was a Windows exe you could DL to remove it, but no equivalent app to do the same in OS X. I wonder if that is what is causing the problem? Here is some discussion on it. (I see in that thread there is a link to a OS X removal tool)

 

[iVikD]

Hmm... did it ever work or is this a new USB key?

Sandisk was doing some wierd things with hidden partition on their USB keys as part of some sort of auto start software they had. There was a Windows exe you could DL to remove it, but no equivalent app to do the same in OS X. I wonder if that is what is causing the problem? Here is some discussion on it. (I see in that thread there is a link to a OS X removal tool)

Yeah, at some point it worked. When my friend gave it to me, it was in RAW format. The only other time I've seen a drive act this way was when forcefully removed during a formatting operation. I'll check the link and see if that's a fix.

 

[M1LK3Y]

RE:Can't format flashdrive

I use a SanDisk USB and I remember it having that file management program on it. I just loaded it into Disk Utility and restored it to a random Unix .iso I had downloaded previously then reformatted and erased.