Xiegu G90 Firmware v1.81 (25-08-25)

This is the v1.81 Firmware for Xiegu G90 with both Main Unit and Display unit firmware files.

Fixes & Improvements

Head Unit Changes:

1. Fixed a bug where a small black box appeared in the upper-right corner of the TX ERROR prompt page.
2. Fixed a bug where automatic antenna tuning would get stuck in SLPT mode.

Main Unit Changes:

1. Fixed a bug where NFM had no receive (RX) audio.
2. Adjusted the display method of the ALC value:
   – Range: 0-100
   – Meaning: Indicates MIC or LINE IN audio level. A higher value represents a stronger input signal.
   When operating in DIGI mode, adjust the LINE IN gain or PC volume to ensure the ALC value remains
   ≤ 50 for optimal linearity.