hcicmd usage
A message encoding option permits you to specify the encoding for the data file. If there is no encoding specified, then the API keeps the old behavior.
hcicmd -p <process_name> -c ". resend_errordb [-m
<meta_file_name>] <midrange> [<file_name>
<len10|nl|eof> [-e <msg_encoding>]]"
If you only specify a MID to resend, then it is unnecessary to specify the encoding. The engine uses UTF-8 to do the resend.