Not recognizing device

My reader will not read mine either. I use a usb key card reader. It used to read the regular old SD cards but the new HC card format wont work. This is due to UDF differences. You can try to reformat the card but then your camera or device may not recognize it anymore. good luck

My Computer won't recognize my MP3...
This is a lot to read but try and read through it I believe this may help. Always try the reset--Sansa Mp3 player frozen? How to reset and...

Please get the driver here : www.rioaudio.com/support/rio/
www.driverskit.com/MP3/Rio.html

Best regards

ur vista version has a problem with usb portable devices so either u have to upgrade ur vista to the latest on or install windows 7 or down grade ur laptop and install windows xp

I had a similar problem. My Sansa c250 would charge, when plugged into the computer. It would read that it was writing but the computer did not recognized that the Sansa c250 was connected. I switched to a different USB port and got the same results. I then realized that the two ports I was using were 1.0 port and idmedeatly when inserted in the 2.0 port it began charging and the computer recongized the Sansa c250. I know this won't solve every charging problem one may have. Changing the battery would be easier in some cases. Especially if they were sold like the AA or AAA.

I found another complaint similar to mine and someone had posted a solution, which also worked on my daughter's Sansa e 260.
I went to settings, then usb mode and selected MSC instead of MTP and computer instantly recognized the hardware and I could sync her music for her! Can't remember name of person who'd posted solution, but thanks heaps!

There is quite possibly a problem with the USB cable or the USB port on the computer, but try this shortcut force to force the computer to recognize the Mp3 player: Try this: disconnect the player from the computer, turn it off, hold in the volume + button, and reconnect the player to the computer while holding the volume + button in. Keep holding the volume + button for an additional 5-50 seconds. Windows should eventually go into recovery mode and revive the player- it will pop up a window that says Found New Hardware Wizard

What I would recommend you to do is to make sure that your device is under MTP mode instead of MSC...to do that go under menu,setting, usb and then there should the two mode listed there...then you want to plug your device in the back of your computer..not in the front..tghat is very important....once you do that..open up your windows media player...click on your start thee sync panel..if your device is recognize properly it will be showing there on the right side..and if its not listed properly, it will say connect a device..if thats the case..click on your start menu right click on computer and then click on propetties, click under hardware and then device manager..your device should be showing there...check under disk drives to see if your device is showing there and if it doesnt you want to right click and hit uninstall...we dont want your device to be under disk drive ..we want it to be under windows portable device...once you uninstall it...go to http://www.sandisk.com/DriverDownload/index.asp and find the driver for your device..and then connecct the device on the back of your computer...it should work properly..if you are still having any problems..let me know..i would be more than happy to assist you..
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Thank you
Computerrep

there isn't a ic where you are talking about on my same device on the same exact device and mine doesn't have it i'm sorry for the inconvenince.

I had a similar problem, although mine kept saying my mp3 wouldn't take subscription music. I just don't use wmp. I have set up so my music downloads to a music folder and then just copy files to my e drive.