: There is no master reset for the service menu. If you change a value and forget the original, you cannot easily restore it.
: Press and hold the MENU and MODE buttons simultaneously while turning the radio on. anytone at5555n ii service menu work
While holding the PTT button, rotate the Channel Selector to change the value. : There is no master reset for the service menu
: Immediately release the first two buttons and quickly press the remaining buttons on the top row in order, moving from DW toward EMG . While holding the PTT button, rotate the Channel
Within those 2 seconds, release both buttons and quickly press: → NB → SCAN → MEM → EMG . Key Settings & Navigation
Accessing the service menu on the Anytone AT-5555N II allows for deep-level alignment of internal parameters like power output, modulation swing, and local oscillator offsets. Unlike the standard user menu, these settings are factory-calibrated and do not reset even if you perform a global radio reset. Accessing the Service Menu