Sony nwz-a815 not regonised

Hi simon755...

Go to Device Manager
To get to Device Manager you will:
Right click on My Computer>Properties>click the Hardware Tab>Device Manager.
After you are in Device Manager look for your MP3 player or Unit.
Here you should see no "Yellow" exclamation points.
If you do they they are telling you that you have a device conflict.
If you currnetly have your unit plugged in, you may notice the "unknown device" which would be your Player or Unit.
If you unit has an exclamation point by it, then you will need to click on it and delete it.
After you remove all devices with conflicts then click on refresh and search again for your MP3 player/Device.
The computer should install your device this time and solve your problem with connection of the MP3 player/Device.
Please take time to rate me thumbs up.

Please read and do what you find here:

http://www.fixya.com/support/t10303618-nwz_e344_sony_walkman_isn_39_t_being

I hope this helps you.
Good luck!
gylacz

Hi
Open Applications/Utilities/Disk Utility and select mounted VOLUME from the left list and choose Unmount in the Toolbar.

Good luck.

I have the same problem. the model is not recognized by my main pc. frustrated

press the reset button boss..............

Hi, kindly get it downloaded here : www.driverskit.com/MP3.html
www.opendrivers.com/.../cameras-and-mp3-player-sony-free-driver-download.html

Regards, Jay

try using itunes

If its Sony NWZ-A815 MP3 player then install Media Manager software in PC to transfer mp3 media files in player.

Check player box as Media Manager software CD is supplied with player.

OR download software from Sony Support.

I replied you in solution thread Sir.

To fix this try the following using an account with administrator privileges and internet access:

1. Open Device Manager (While holding the windows key, press the Pause / Break key. This will open up the System Properties box. Select the Hardware tab and click Device Manager)
2. Find and expand the Portable Devices folder (a problem icon should appear beside the WALKMAN NWZ-A815 device)
3. Right-click WALKMAN NWZ-A815
4. Click Update Driver...
5. Select Yes, this time only
6. Click Next
7. Select Install the software automatically
8. Click Next
9. Click Finish

Open Windows Media Player 11, connect your sony nwz-a815 and wait for it to appear then try to sync some files.