Looking for information about tethering a Matricom .TAB Nero (7") to a Sprint smartphone (Samsung Galaxy Epic and/or Galaxy S3). USB tether appears to be MTP only. OTG cables in various combinations including a Y with power supply don't seem to work either. USB tethering works from both the smartphones to Windows PC. We are using after market hotspot software to enable internet access for other devices via the smartphone(s). Product works for wifi on Epic but not S3. I can't seem to find any tablet specific content anywhere. I have found rooting information for the Samsung phones and that may be an option to enable wifi via the S3 instead.