Super reception, super price Leistungsverhältmis

After I use already pocket TV from Hauppauge for digital terrestrial TV for a few years, the XORO adapter was the next logical step. Have installed on my 10-inch tablet Touchlet XA-100 and on my Samsung S-4 mini PadTV the software before delivery of the adapter. Today the tiny Xoro HTR-1100 came. The XA-100 tablet has recognized him immediately
and the first channel scan brought before 12 stations. Picture and sound quality are surprisingly good.
Then the same procedure on the Samsung S-4 Mini, but the adapter is not detected. Software app starts to call, recognizes
but not a connected device (Android version 4.41 on the Samsung S-4 mini) where the plug because of the protective sheath not go far enough? So protective sleeve removed and new attempt - without success. USB jack must be in order, because the
PC Samsung recognizes immediately after connection. Has anyone a hint for the S-4-mini? Must be something in the settings
changed / are activated? Thank you very much!