The menu option 7.8 does not exist in the early (at least <90) units. The procedure I came up with was to hold down PTT during boot, it says reset... then OK and powers up, but this requires a trick to really clear to defaults. Power it up and hold the PTT, wait until you see the Reset message and unplug power before "OK" shows up. The next power up you can select band. You may need to time this correct.
Daniel Ekman SA2KNG