I recently downloaded some music and ringtones to my DX. They worked for a day and now the music does not show in my music app and the ringtones are not available. I see the files in my downloads folder still and I can play them out of there. It seems that outside of the downloads folder the phone does not recognize them. Thanks in advance for the help.
Try doing a soft reset on the device.
To do a soft reset:
Press the Power key.
Touch Power off.
Press the Power key to power on the device.
Once you have done a soft reset, try re-opening the music application and seeing if the music files have returned. Make sure to look for the music and ringtones by searching all songs in the music player application.
If the files are not there, then you would need to place them in the correct music folder on the device.
To utilize the DNLA application, an active WiFi connection must be established.