Comment 10 for bug 1752687

So in that pcap when I look at it with vim, I see things like:
¤Û^V^Fj^B^L*Å^@^C^C<9a>ons^@feature_200_final^@feature_nativedisk_cmd^@feature_timeout_style^@^@Possible commands are:^@Possible devices are:^@Possible files are:^@Possible partitions are:^@Possible arguments are:^@Possible things are:^@ %s^@ ^@
^@%s/x86_64-efi/command.lst^@module isn't loaded^@superusers^@user '%s' not found^@Enter username: ^@^H^@%c^@
^@Enter password: ^@access denied^@^@Check whether user is in USERLIST.^@[USERLIST]^@authenticate^@%s/x86_64-efi/fs.lst^@Warning: syntax error (missing slash) in `%s'
^@Warning: invalid foreground color `%s'

Which eventually:

¤Û^V^Fj^B^L*Å^@^C^C<9b>arning: invalid background color `%s'
^@black^@blue^@green^@cyan^@red^@magenta^@brown^@light-gray^@dark-gray^@light-blue^@light-green^@light-cyan^@light-red^@light-magenta^@yellow^@white^@)^@^@%s,%s^@" ^@' ^@ ^@.^@..^@%s/^@set^@-u^@--help^@--usage^@--%s^@/^@Sunday^@Monday^@Tuesday^@Wednesday^@Thursday^@Friday^@Saturday^@
   ^@Falling back to `%s'^@

^@
^@Press any key to continue...^@
  ^@Failed to boot both default and fallback entries.
^@timeout^@%d^@default^@timeout_style^@%d ^@theme^@gfxmenu^@module `%s' isn't loaded^@gfxterm^@fallback^@chosen^@0^@boot^@menu^M]<98>Zyñ^N^@<^@^@^@<^@^@^@H^OÏõiñ¨^^<84>ò<96>Å^H^@E^@^@ d6^@^@@^Qíï

Could this be that the firmware is the issue here?