Problem with USB 64Gb

[importic]

All was ok before i use HDD Low lever format tool 4.25
I had FAT 32 - 64 Gb flash
Now it shows size - 0. And no one program can format it. Only HDD Low level tool again.... this still can format it. After formatting it always shows - zero.
I use windows 7. Windows can not format it too.
Do not know what to do...

[importic]

19 - the media is write protected... -- it start after 10percents and till end

[importic]

All is ok...
after use particion magic

[Vulcan]

Based on your earlier description, I doubt that everything is really OK, although it might appear to be that way at the moment... Depending on how much time you agreed to invest in further diagnosis, then additional tests could be done.

[importic]

Oh...it is too sad
my flash usb broken again...
could you advice me something?
HDD low level format not work.... it write "locking device" and then not works


sorry for new topic... how to change it...add to previous....or delite

[Vulcan]

[You can't change / merge topics, after starting a new topic by mistake. I will ask the admin to add this thread onto the end of your previous thread: problem-with-usb-64gb-t22946.html but I don't know if the forum software allows that.]

I'm sorry to say that I'm not surprised at your new posting, as you can see from my previous posting.

Will you answer some questions? (I don't want to spend a long time writing questions now, if you are too busy or not interested to reply...) Or do you just want guesses about the cause of your problem, but without doing any more work?

[importic]

yes, i will answer.
So this looks like some sectors demaged. Can i put it in trash? or try something to do?


p.s. sometimes my english not 100% well... but i think it is normal for understanding

[Vulcan]

Hi,

Your English language skills are better than my Russian language skills, so hopefully we can communicate. If we are not successful, then perhaps someone else will help you...

Let's try to understand the problem more by (a) getting more information, and (b) doing some testing. Note: I am assuming that you don't need any data from that USB drive (since you've been trying to format it). The testing I suggest below is destructive to any data on the USB drive.

(a) The history of this USB drive...

* How long have you had this drive?
* Have you ever filled the drive with 64GB data, and then been able to read all 64GB of that data successfully? (If this has not been done, then the program below will do that test.)
* Where did you get the drive (private sale? auction site? well-known retail shop? somewhere else? etc.)
* Do you have any kind of warranty so that you can return the drive to the seller, and get a refund?
* Why were you trying to do a "low level format" on the USB drive - what happened first, to make you want to try that? (I'm guessing something bad happened - but what?)
* Did you try a Windows format before running the "low level format" tool? If so - what was the type of Windows format that you tried (quick or full); what was the Windows version that you used (XP, 7, Vista etc.); what was the result of that Windows format attempt?

(b) Testing the drive

The type of behaviour you are seeing can be caused by a "fake" flash drive e.g. it is labeled as 64GB capacity, but it actually has much less physical NAND flash. (Or it can just be a faulty drive.) One easy way to check a USB drive for having the correct reported capacity is to use the H2testw program. This web page includes a download link for the program itself, as well as links to the German (and English translation) web pages where you can read more about the program, if you want to read that. (Unfortunately there is a dead link to another article.)

http://sosfakeflash.wordpress.com/2008/ ... it-drives/

Attach the "suspect" 64GB drive to your PC, and remove all other USB drives from the PC before running the H2testw program (German or English language text only). You can see an example of the text report from a "fake" drive on the web page I linked above.

Please include the text report from running H2testw on your 64GB drive, with your reply and the answers to my questions about the history of the drive - hopefully it will help to explain the behaviour which you are seeing.

[Vulcan]

@importic,

yes, i will answer.

What answers to my questions do you have, so far? Anything?