The AnyTone AT-5555N II (Version 2) features a revised internal service menu compared to the original AT-5555N, with recent updates (specifically the v3 firmware released around late 2024) introducing more granular control over modulation and noise reduction [10, 13]. Accessing the Service Menu To enter the hardware service menu on the AT-5555N II: Turn the radio OFF. Press and hold the FUNC and SCAN buttons simultaneously. Turn the radio ON while continuing to hold the buttons.
Viewing Values: To see the current value of a setting, press the PTT (Push-To-Talk) button on the microphone. anytone at5555n ii service menu updated
If the radio displays "------" or random numbers, the PLL has lost lock. The AnyTone AT-5555N II (Version 2) features a
For more information on the Anytone AT5555N II and its service menu, we recommend the following resources: Turn the radio ON while continuing to hold the buttons
for final fine-tuning. This helps keep the fine-tuning (fr) range smooth. Hard Reset:
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