River iFP-190T is an iFP-100 series player. The device has UMS connection type. UMS = Universal Mass Storage seeing the device as a flash drive (also called removable disk).
For music transfers and firmware upgrades iriver PLUS3 must be used. Download iriver PLUS3 going to this site:
Click Support on the left side.
Select Download in the second column.
Select "Download iriver PLUS3" in the page: allow download (when blocked / sometimes download has to be repeated).
The size of the iriver PLUS3 download is 59.3 MB.
Computer / Windows requirements:
- Windows 2000 Service Pack 4 or later, Windows XP
- 233 MHz Pentium class processor or better
- 64MB of RAM, 256MB recommended
- 30GB of available disk space
Manual for iFP-190TC with this link: