Anytone At-5555n Ii Service Menu High Quality Online

: Standard CPU resets (holding [FUNC] + [SCAN] during power-on) only reset user-level menu settings and frequency ranges, not service menu calibrations.

: As soon as the display turns orange (within that 2-second window), release the Menu and Mode buttons and quickly press the following buttons in exact order: DW → RB → NB → SCAN → MEM → EMG

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Do not attempt to align the radio by ear. Use a high-quality, calibrated dummy load and power meter.

Once in, you may need to press other keys, such as to EMG , to navigate specific sub-menus. Method 2: The Alignment Menu (Alternative Access) Turn the radio ON . Press and hold the FUNC button and SCAN button together. : Standard CPU resets (holding [FUNC] + [SCAN]

Adjusting power output levels or modulation depth beyond factory specifications can cause the final power transistors to overheat and fail.

Follow these steps precisely:

: Transmitting into an open circuit while adjusting power settings can permanently damage the radio's finals.

Before changing a single number, grab a pen and paper. Scroll through every single menu item and write down the factory-set hexadecimal or digital value. If you mess up, you can manually restore the radio to its factory baseline. If you share with third parties, their policies apply