I bought the 64 gig Extreme USB 3.0 and have had nothing but grief.
After I put my personal data on it (read this as I WILL NOT be sending back for them to recover) it locked up.
I cannot retrive my data, I get a dmbackup.dll error when I try to start the interface, and I cannot wipe the drive in any OS since the drive is showing as write protected in Debian and Win 7. btw the OS is extFAT.
Any ideas? I am ready for the sledge hammer solution and NEVER buyiing anything from SANDISK again.
“I get a dmbackup.dll error when I try to start the interface,”
" btw the OS is extFAT."
Dmbackup.dll is created by SecureAccess and apparently SecureAccess doesn’t support exFAT.
BTW I believe you will find the USB device is manufactured as FAT32 not exFAT.
The only solution to the write protection problem is to return the device to where you bought it or to SanDisk. For devices containing sensitive information SanDisk has been known to allow the device to be smashed before being returned.
I just spoke to SanDisk technical support and they’ve agreed to replace these usb sticks. It’s possible they have notes in their internal database that shows that this batch is faulty.
Product codes (on usb stick and on packaging):
BN120623463B
SDCZ80-064G
I suggest if you’re one of the many that experience these problems with the usb sticks, you return them to where you got them - or call SanDisk for a return.
Got the extreme USB 3.0 64GB flash drive. Managed to copy two files to the drive. Moved it from a WIN XP SP3 machine to an Android device, Asus TF700T 64GB transformer with USB 2.0 port in the keyboard dock, Copied the two files to the Asus. Next time I attempted to copy from the WIN XP box to the 64GB flash drive, I got this error message “The request cannot be performed because of an I/O device error.”
In the Android tab the error message is “paste failed”
The 64GB drive is recognized by WIN and Android 4.1.1 but cannot be used.
And also problems. I just got it today, and have the same problems on 3 PCs (USB3 and USB2 ports):
Can read the prerecorded files and write a few files. But if I try to write a larger file (more than about 15 MB), it locks up.
It also locks up if I try a CHKDSK /F on it.
I sent it back to the seller and got a replacement that works OK.
Sandisk should put some effort into handling this what appears to be a “serial defect” (don’t know the english expression, it is a case when a whole series/batch of a product has (the same) defect).
The new stick works, as mentioned, but has problems when connected to a uPD720200 USB 3.0 controller.
Interestingly, under Linux it works fine.
Only in Windows 7 it locks up after some data is transferred.
As it seems like the problem could be handled in software/driver, could SanDisk put some pressure (I mean “ask politely”, as a big company that would make more impact if a lone end user would ask) to Renesas to try to address the issue in their drivers?
Thanks!
PS: More information: The Windows 8 builtin USB 3.0 driver from Microsoft also seems to work without error. So it is really something in the NEC/Renesas drivers that causes the problem.
In installed the latest Renesas driver version 2.1.39.0 and now it is much better. Everything appears to work nicely, although I got a corruption in one big (1,5GB) file I copied to the USB stick.
ANybody who has samsung kies program in computer and sandisk flashdisk… they donot work togather. in start menu of your windows (mine is w7 home) write “msconfig” and enter.
then a window will appear. there, you go to statup and uncheck everything about KIes. this is the startup programs to start automatically when win starts. it will as to resatr. do it.
then next time your sandisk will not be recognised. dont care. without touching sandisk, shut down computer and turn on again. every thing will be fine.
I read it smwhere and applied 4 myslef now everything works.
Just received my nice new Extreme 64GB flash drive in the Mail from TigerDirect.com… Plugged it into my Windows 7 Pro PC (USB 2.0) and I can’t do anything with it. I can see the files that were already loaded on from the Factory but I can’t even create a new folder. I’ve tried several things including restarting the computer but Not formating. Why do they sell a product that doesn’t work??? I guess the “EXTREME” stands for EXTREME measures need to be taken to get it to work… I guess I’ll have to send it back to TigerDirect - After I give it a BAD Review…
My PC is:
Toshiba Satellite L755D-S5104
Windows 7 upgraded to Professional SP1 - 64bit of course
AMD A6 Quad core processor
4GB Ram
If anyone who is more computer savy then me can figure out how to get this to work - I really would appreciate a heads-up!
