G'Day... I have a LVW-5115GHC+ and just performed a Hex-Dump on firmware versions - LNMPU018, 019, 030 and noticed the following:

Hex String - 55 53 00 00 00 00 00 01 00 00 00 00 00 00 00 03 is present in all three versions and it looks very similar to the MV and Region string for the 5005.

You can find this string at:

LNMPU018.DA3 @ 0x2C8A7A
LNMPU019.DAA @ 0x2CB889
LNMPU030.DA2 @ 0x2D78DD

Has anyone else noticed this? If so, have you tried any mods?