Hi, i need a little help. I did the downgrade following the tutorial but now i cant see any channel with my TV, every channel is just noise sound and a black screen, i have tried to tune in the channels via manual and automatic methods but nothing works. The model of my TV is 49UB8500 and i am in firmware atsc 05.00.20 (not dvb) . This is the info of the in_dump file. I am from chile, thanks in advance for any help.
<REQUEST>
<PRODUCT_NM>webOS</PRODUCT_NM>
<MODEL_NM>HE_DTV_WT1H_AFAAATAA</MODEL_NM>
<SW_TYPE>FIRMWARE</SW_TYPE>
<MAJOR_VER>04</MAJOR_VER>
<MINOR_VER>62.43</MINOR_VER>
<COUNTRY>CL2</COUNTRY>
<DEVICE_ID>3c:cd:93:21:1b:51</DEVICE_ID>
<AUTH_FLAG>N</AUTH_FLAG>
<IGNORE_DISABLE>N</IGNORE_DISABLE>
<ECO_INFO>01</ECO_INFO>
<CONFIG_KEY>00</CONFIG_KEY>
<LANGUAGE_CODE>es-CL</LANGUAGE_CODE></REQUEST>