Anytone At5555n Ii Service Menu Updated Fixed «90% EASY»

If you just bought the radio and it works fine—. But if you are a seasoned tech looking to squeeze every drop of performance out of your 5555N II, the updated service menu is your new best friend.

Despite trying every external setting, the radio was unusable. The diagnosis from the community? A previous owner had ventured too far into the hidden service menu without a map, tweaking critical alignment parameters until the radio's "brain" was misaligned beyond basic repair. It stands as a reminder that while these menus offer power, they require the precision of a technician. Quick Reference for Adventurous Owners

Accessing the service menu allows modification of transmit frequencies, power output, and deviation limits. In many jurisdictions, operating this radio on frequencies outside the 10-meter amateur band (28.000–29.700 MHz) without the appropriate license is illegal. Furthermore, improper adjustment of alignment parameters (such as TX power or PLL voltage) can result in hardware damage, RF burns, or interference with emergency services. Proceed at your own risk. anytone at5555n ii service menu updated

Ensure the radio is completely turned off using the volume/power knob.

Once inside the Service Mode (often displayed as S-01 through S-xx ), the parameters control the core radio functionality. If you just bought the radio and it works fine—

The service menu is a hidden menu system that allows users to access advanced features and settings on their Anytone AT-5555N II radio. This menu is typically used by service technicians and advanced users to customize and troubleshoot the radio. The updated service menu offers a range of new features and options, including:

The screen should display a version number or a specific "Service" header, indicating you are in the alignment mode. Key Adjustable Parameters The diagnosis from the community

Adjusts the continuous carrier power for FM. It is usually set to roughly 30–40 watts. Avoid pushing this past factory specs to prevent overheating the finals.

: Turn the Channel Selector knob to scroll through the numbered service parameters (e.g., F01, F02, F03).

Adjustment: Requires a high-accuracy frequency counter connected via a dummy load. 2. Transmitter Power Output (TX Power Align)