I have a Sony Bravia TV model no. KLV-32R302D. I'm having trouble with the subtitle feature for Smartphones connected via USB. Even though there's a .srt file in a folder with the same name as the video, but still on pressing the subtitle button all I get is "subtitle not available". Also, while using a pen drive I do not face any issue with subtitle. Is there any solution to this problem (other than merging video with subtitle)?