Hey, same problem here, no firmware found
<REQUEST>
<PRODUCT_NM>webOSTV 2.0</PRODUCT_NM>
<MODEL_NM>HE_DTV_W15A_AFADABAA</MODEL_NM>
<SW_TYPE>FIRMWARE</SW_TYPE>
<MAJOR_VER>04</MAJOR_VER>
<MINOR_VER>20.50</MINOR_VER>
<COUNTRY>DE</COUNTRY>
<DEVICE_ID>c8:08:e9:40:f6:57</DEVICE_ID>
<AUTH_FLAG>N</AUTH_FLAG>
<IGNORE_DISABLE>N</IGNORE_DISABLE>
<ECO_INFO>01</ECO_INFO>
<CONFIG_KEY>00</CONFIG_KEY>
<LANGUAGE_CODE>de-DE</LANGUAGE_CODE></REQUEST>
Thanks for your help