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GMRS-50PRO Firmware Changelog
This page lists official GMRS-50PRO radio firmware releases in reverse chronological order.
Update tip: After flashing, if the screen does not power back on: unplug the radio from power → Press and hold the Menu button (the top left white button) → While holding the Menu button, reconnect power and turn the radio on (after releasing the reset will take about 1 minute). This will reflash the display firmware and restore normal operation.
Best practice: After major updates, back up your channels, then perform a Factory Reset and re-sync using the BTECH GMRS Programmer app.
V0.9.2 — January 29, 2026
New
- Radio Settings Update: Added a Reverse Frequency switch in Radio Settings.
- Programmable Buttons: New assignable actions: Squelch Level +, Squelch Level −, Display Squelch Level, Reverse Frequency Toggle.
- If the last received channel is not the current channel, a speaker icon will be displayed.
Improvements
- Keypad Lock Behavior: The radio now restores the previous keypad lock state after powering back on. (When the keypad is locked, volume adjustment via the potentiometer is disabled to prevent accidental changes.)
- Mute Status Indicators: The mute icon now distinguishes between different mute conditions (e.g., manual mute, squelch, other system mutes) for clearer status feedback.
- Audio Relay is Added to the on-board radio Menu
V0.8.12 — October 9, 2025
New
- Added NOAA Alarm Volume option in Sound Settings.
Improvements
- Volume bar display time shortened to ~1 second.
Fixes
- Location Sharing no longer interrupts network-channel reception; corrected send-channel selection errors.
- Audio Relay: resolved occasional silent transmit caused by audio re-sampling.
- External GPS module: fixed time-parsing failure.
V0.8.4 — April 29, 2025
New
- Added VOX support for Bluetooth headsets, enabling hands-free transmission with compatible devices.
- New option allows Bluetooth headsets to be used for PTT while routing audio through the radio speaker (configurable in Sound Settings). Onboard Menu Updates
- Added “Scan Pause” feature: scanning now pauses when a signal is detected, allowing manual resume.
Improvements
- Large Firmware Update – Factory Reset Recommended After Update Bluetooth and VOX Enhancements
- Improved stability with third-party Bluetooth accessories.
- VOX configuration options added to menu for easier setup.
- NOAA Function Improvements
Fixes
- Introduced “Channel Save” function to store active channels during scanning. Resolved audio relay issue ⸻ Important Notice for Users Updating to This Firmware: The GMRS-50PRO firmware update includes a display controller upgrade. After installation, some users may see a white or black screen upon reboot. If this occurs: Disconnect power from the radio. → Press and hold the Menu button (the top left white button). → While holding the Menu button, reconnect power and turn the radio on (after releasing the reset will take about 1 minute). This will reflash the display firmware and restore normal operation.
Other
- Audio Relay settings are now directly accessible from the radio menu.
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