Help!I cant charge my Mps with the USB cable...

What are you using to charge it? How old is your ereader?
Are you using a usb cable to computer to charge? Or do you have an adapter that goes in the wall socket that connects to your usb cable.
You may need a new usb cable, or depending on the age of your ereader maybe a new battery.

Are you really talking about a TINspire CX or a TI NSpire. The TINspire CX (CAS or Not) comes with a rechargeable battery and an adapter/Charger. You plug the charger in an electric outlet and let it party charge. If the calculator battery fails to recharge then it must be defective. Any third party mini USB charger will recharge the battery.

The TINspire with touchpad (CAS or not) can use regular batteries or the optional rechargeable battery.
It is not necessary to connect the calculator to a computer to have it recharged.

As far as the calculator being recognized by the computer, you must install the communication software (TI computer Link Software for the older TINspire) or the TI Nspire teacher or student software for the CX. When you run the TINspire teacher or student software and then connect the calculator, you will have the opportunity to select it.

the player must be recognized as an MTP * device by the computer. go to run and type device manager -> open->portable devices->walkman then right click to update device software .. thts all u need hope this helps

When this situation occurs, the Reader will not appear in the left pane of the Reader Library software or the Reader Library may shut down when connecting the Reader to the computer. Follow these steps to resolve this issue.
IMPORTANT: Before starting this or any troubleshooting procedure, verify that the Portable Reader has been updated with the latest firmware version and that the latest version of the Reader (eBook) Library software is installed on the computer. The latest firmware and software is available at the Sony Support Web Site.
NOTE: Because each of these steps represents a possible solution to this issue, open the Reader (eBook) Library software and connect the Reader to the computer after completing each step.

1. If the reader is not recognized by the library software, close the software, re-open it and then check the connection status again.
2. Verify that the Reader is turned on and is not locked.
3. Verify that the Reader battery has an adequate charge.NOTE: If the Reader battery is discharged, allow the battery to charge for at least one hour before attempting to connect the Reader to the Reader (eBook) Library software.
   
4. Verify that the USB cable is properly and securely connected to the Reader and the computer.NOTE: The USB cable should be connected directly to the computer. Connecting the Reader using a USB hub or extension cable is not supported.
   
5. Verify that the Reader displays the USB connection indicator in the upper-right corner of the screen.
6. Remove any Memory Stick® media or SD media in the Reader.
7. Disconnect the Reader from the computer, close the Reader library software and restart the computer.
8. With the Reader disconnected from the computer, perform a hard reset.
9. With the Reader connected to the computer, uninstall and reinstall the Sony Reader USB driver.
10. Install the Reader library software on a different computer and connect the Reader.

The troubleshooting steps listed above should resolve your issue. If you have completed all of the steps and the issue is not resolved, service may be required. Follow the below link to get it serviced: http://eservice.sony.com

Purchase a usb power plug to plug your device into the wall if it charges then your computer just needs to re install the device driver

hello there!!! thanks for using Fixya.com!

just a little information...
PDA USB Sync/Charger/Data Cable for Sony-Ericsson P800,Sony-Ericsson P900 Features:

USB Sync/Charge Data Cable for Sony-Ericsson P800,Sony-Ericsson P900

Auto Sync with computer in USB port and charge Sony-Ericsson P800,Sony-Ericsson P900 PDA with same cable

Directly connects with USB port, need no extra power

Plug and play, need not software installation

Eliminates the need for cradle and AC/DC converter when traveling

Compact, lightweight and easy to use

One of the best USB hotsync data cable for Sony-Ericsson P800,Sony-Ericsson P900!
If you experience problems when using the USB cable during synchronisation:

1. Check that the USB cable is properly connected to the phone and the computer.
2. Make sure the phone is turned on.
3. Restart the computer, without disconnecting the USB cable or turning off the phone, and try to synchronise again.
4. If you still experience problems using synchronisation software, e.g. Sony Ericsson PC Suite or Active Sync, try to uninstall and reinstall the program you are using. Or you may go to this website for further information http://www.sonyericsson.com/cws/support/phones/detailed/usbcableissues/p900

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What is the Pc doing that shows you it is not recognizing the camera?
Have you looked in My computer at your drives to see if it is showing there? For some reason mine sometimes shows up my F drive instead of my camera drive. Then you can just click on the drive and open the folder for the photos.

What I did when I got this error was to push the reset button on the bottom of the player itself... Mine rebooted and took a charge from the computer. Hope this all works for you.

you can use any USB cable, there is nothing specific about any particular brand... now the computer has to recognize the phone. You need the software/driver.