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I am not saying that this is the correct solution, but is works for me each time. Just plug the mp3 player into one of the usb ports on at the back of your computer case.
One other thing you can try is:
Simply UNPLUG YOUR COMPUTER FROM THE POWER SUPPLY.
Yes that’s it! Note that this does not mean just turning off your
computer because modern computers don’t really turn off when you press
the power button as the motherboard still gets power.
First to explain, the motherboard is where all of
hardware of the computer is connected to, including the USB ports.
Sometimes the motherboard needs to be “rebooted” also because something
can go wrong, i.e. all your USB ports suddenly stop working. The small
microprocessor on the motherboard will reload the drivers and your USB
ports should be back to recognizing all devices!
So first turn off your computer using Shut Down or
pressing the power button and then UNPLUG it from the wall outlet. Let
it sit for about a minute and then plug it back in.
Hope this can help you in fixing that pesky “USB device not recognized” Windows error!
When you connect your mp3 player to your PC, it will appear in "My Computer" as a removable drive. If it does not, the USB port may be the problem. Plug a different device into this port to make sure it is working. If it is not, make sure you have all the drivers for your computer inastalled. Also try a different USB cable.
The actual MP3 player should display a USB connection on the screen, if not, I would say its a connection issue (bad USB cable), my guess is your using a laptop, a lot of laptops disable their USB power options, you probably need to re-enable your USB ports, if desktop, it should show a USB connection on MP3, if not, battery or cable issue.
Make sure you have plugged your Coby MP3 player into a USB 2.0 port. The Coby does not support the USB 1.0 standard. If you are getting an error that "This device can perform faster..." your port is an older USB type. I have both types on my computer and the Coby would not install until I plugged it into my 2.0 port.
Try this: 1. Close all programs and restart computer. 2. Launch iTunes. 3. Make sure iPod is on. 4. Plug iPod into USB port on computer and iPod unit. 5. Wait for iTunes to recognize iPod (sometimes takes 45 sec).
To check if the mp3 is recognized by the computer go to device manager in the compuer properties.
Go to device manager go to hardware tab and search for new hardware, if you see a question mark in the usb port it means that the computer cant recognize it and you may need a driver. Some mp3 have cd installer of its software. Install it in your computer. and try if the computer can recognize it.
also check if your usb port is working properly...
I/O refers to input/output, meaning USB items as well as anything else "plugged" into the computer. Usually just referring to USB though.
Try using a different port, although that usually isn't the problem.
If that fails to work, try pulling the player out, then reinserting it, sometimes the computer fails to recognize the item. When you put it in, if you are using a Windows operating system, go to My Computer, and wait for it to recognize the player.
You may have to go into the system BIOS/CMOS, and turn on PnP(Plug and Play) capabilities if they are not enabled.
If none of these work, you may have a defective player or perhaps bad USB ports. I'll try to find more info on it if I can.