I have a friend that purchase a PRS 500 just like mind when holding down the PGM key truning on the scanner the scanner will enter its CPU SW UPGRADE mode his has UP BOOT VER F1.1 AND UP APPL VER U1.7.mine has UP BOOT VER F1.0 AND UP APPL VER U 1.7.I was thanking that im missing a update.can some one help me.