Lockout• Press [UP]+[DOWN] for 3 seconds to lock or unlock the beltpack-menu LCD. The words “Loc on” will be displayed when the feature is activated, “Loc oFF” will be displayed when the beltpack is unlocked. Pressing [MENU] will still function to view screens, but [SET] will no longer start any editing.  Scan, First use, Factory default and talk button latch on/latch off are no longer accessible. 1st Use Default• Press [MENU] while turning on the beltpack to enter the 1st use default setup screen. This places the unit on group 01A with channel 01 flashing. Any user-programmed frequencies that had been entered previously are retained.  The beltpacks must now be set to different transmit channels using the [UP]/[DOWN] buttons. Then [SET] is hit to place the units on those channels. If lockout had been activated, the beltpack comes up where it was last left regardless of [MENU] being pressed on power-up. Factory Default• Pressing all four buttons [MENU]+[SET]+[UP]+[DOWN] at the same time for three seconds places the unit on group 01A with channel 01 flashing, just like beltpack 1st use default, except the all user-programmed frequencies that had been entered previously are erased. After the buttons are released, it still may take several seconds for the beltpack to reset. The beltpacks must now be set to different transmit channels using the [UP]/[DOWN] buttons.  Then [SET] is hit to place the units on those channels.  If lockout had been activated, the beltpack comes up where it was last left regardless of these four keys being pressed.