hello, i don't think this receiver is a clone of any metabox models, anyway, look
HERE for the technical specifications of this receiver, and
HERE for the way to update the receiver and what file is used for that.
but in the case if this receiver is a clone of any metabox receivers, just look into menu\system setup\system information\ and report us what you read in the line (MAIN:........) and (H/W:.........) and also the last line.
hope that help you !