Anytone At5555n Ii Service Menu: Work !!top!!

Never test or calibrate transmission settings with an antenna connected. Use a high-quality 50-ohm dummy load to prevent interference and protect the final transistors.

Accessing the service menu is not a simple menu navigation process. It requires a specific power-on sequence to trigger the engineering mode. the radio. Press and hold the [FUNC] key while turning on the radio.

Ensure the transceiver is completely powered off via the volume/power knob. anytone at5555n ii service menu work

When should you use the service menu? Only in these specific scenarios:

This enables you to make the signal meter match real-world signal reception. Never test or calibrate transmission settings with an

While keeping those two keys firmly held, turn the volume knob clockwise to power the unit up.

The service menu is hidden to prevent accidental adjustments during regular operations. Follow this precise sequence to access it: : Ensure the transceiver is completely turned off. It requires a specific power-on sequence to trigger

When making adjustments in the service menu, exercise caution to avoid causing damage to the radio or affecting its performance. Keep in mind:

A: Some users mention a "Main Boot-up Service Menu" accessed with a different button combination. The one detailed in this article (hold MENU+MODE -> power on -> button sequence) is the primary and most commonly used menu for calibration. The other may provide even lower-level access.

What is your radio's current , if you know it? Share public link

(Note: Exact button names may vary; consult AnyTone AT-5555N II hardware labeling. If these steps fail, the radio may require an alternate key combo or a firmware debug cable.)