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Newbie
pearson
Posts: 2
Registered: ‎12-11-2011
0

Re: Cruzer Blade will not format

"How do I get this 8Gb flash drive formatted?"

SanDisk Guru
Tapeworm
Posts: 14,964
Registered: ‎04-17-2008
0

Re: Cruzer Blade will not format


pearson wrote:

"How do I get this 8Gb flash drive formatted?"


You shouldn't have to if it's new.

Newbie
franf44
Posts: 5
Registered: ‎01-04-2012
0

Re: Cruzer Blade will not format

I have the same issue with a Cruzer blade 16GB that I got for christmas.

Failed to work at first plug-in. It reports a disk size of 64 MB andask for format.

However I was unable to format it on Windows and MAC.

This drive was bought some time ago and can not ask for warranty as I don't have any vendor receipt.

SanDisk Guru
Ed_P
Posts: 1,681
Registered: ‎07-23-2010
0

Re: Cruzer Blade will not format

???  Christmas was what 10 days ago?  And the drive was bought some time ago.  So who had the drive before giving it to you?  And what were they doing with it before giving it to you?  I suggest you talk to the giver about the problem.

Ed
Newbie
franf44
Posts: 5
Registered: ‎01-04-2012
0

Re: Cruzer Blade will not format

The giver is my syster in law and she gave it to me as she was unable to use it. She does not know much about computers. Didn't ask where she bought the key.

SanDisk Guru
Ed_P
Posts: 1,681
Registered: ‎07-23-2010
0

Re: Cruzer Blade will not format

The 64MB size and description of your sister-in-law leads me to suspect she removed it from her pc without using the Windows USB Safe Removal option and the FAT got screwed up.  A fairly common situation.

 

The unable to format under a pc or a MAC is a tougher situation. 

 

What kind of error msg does the pc give when you try to format it? 

 

Are you running Windows 7?  Are you using a Limited access user id or an Admin one? 

 

Try booting the pc in Safe mode and then try formatting it.  Try erasing LIGHTLY the contacts on the Blade.  Try cleaning the USB contacts on the pc.

Ed
Newbie
franf44
Posts: 5
Registered: ‎01-04-2012
0

Re: Cruzer Blade will not format

Windows reports "CWindows was unable to complete the format"

Well, I made further testing using winhex tool that allows to write directly to disk sector.

Result is that the 64MB sectors are all 0x00 and when writing data 0xFF it get a failure and data is still 0x00.

That explains why format does not work.

When I'll have time I'll try a USB analyser (got one at work) to catch the SCSI messages. I would not be surprised that the USB controller reports 64MB instead of 16GB meaning it can not access the NAND FLASH memory present in the drive.

This is a bit technical, but I'm electronic engineer and build such systems in the past creating USB drives with USB mass storage class.

SanDisk Guru
Ed_P
Posts: 1,681
Registered: ‎07-23-2010
0

Re: Cruzer Blade will not format

What does Disk Manager show when the Blade is plugged in?  And what does Device Manager show for Disk Drives and Portable Devices.

 

I don't have a Blade but I do have a couple of Cruzers, and they have two drives built into them, one of which is a CD drive for U3 software.  While U3 is gone I'm wondering if the Blade is keeping the 2 drive concept and using one for SanDisk software and one for user files.  If your pc doesn't have a drive letter available for both drives you could be looking at the wrong part of the Blade to format.

 

It's a wild theory but so to is your situation.  Let me know what you find.

Ed
SanDisk Guru
Ed_P
Posts: 1,681
Registered: ‎07-23-2010
0

Re: Cruzer Blade will not format

The wild theory is wrong.  I bought a Blade the other day to see for myself what it had and it has only the single drive.

 

Kinda funny to see it has an Autorun.inf file on it.  Other than assigning an icon and label to a drive they don't do much any more.

Ed
Newbie
franf44
Posts: 5
Registered: ‎01-04-2012
0

Re: Cruzer Blade will not format

Thus, it seems that this boot partition is down on my drive, as it can not be formated nor written.

Is this partition 64MB size on your drive ?