BTECH GMRS-50PRO firmware

Firmware history

All versions below were published by BTECH on baofengtech.com. Third-party and modified firmware is never listed.

1. Version 0.9.3 Latest Released Jun 1, 2026 First seen Sep 6, 2026

   Adds preset DTMF commands, enhanced channel display, and message threading. — summary by updatemystuff.com

   Source: baofengtech.com

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   New Preset DTMF Commands: Added support for preset DTMF commands for quicker tone dialing.

   Main Channel Display: The main channel can now show both the channel name​ and frequency at the same time.

   Network Receive Display: When receiving through the network, the radio now displays the bound network channel name.

   Bandwidth Control: Added a bandwidth modification option under Radio Settings.

   Narrowband Indicator: Channels using narrowband now display an “N” indicator in the status bar.

   Launch Timeout Warning: Added a prompt tone 5 seconds before launch timeout.

   Auto-Shutdown: Added an auto-shutdown option under General Settings.

   Microphone Gain Range: Increased the available adjustment range for microphone gain.

   GMT+14 Time Zone: Added time zone support for GMT+14.

   DTMF Modulation Alignment: Unified DTMF transmission modulation between the mobile app and radio.

   Message Thread Display: Added su​pport for displaying multiple messages from the same teammate.

   This also allows multiple APRS messages from the same source, such as WXBOT, to be viewed.

   Fixes

   KISS Transmission Interruption: Fixed an issue where KISS transmission could be interrupted.

   Single-Channel Receive Return: Fixed an issue where, after transmitting on a specific channel while listening to only one channel, the receiving frequency might not return to the current channel. iOS Region Name Cleanup: Fixed an issue on iOS where renaming a region with a shorter name could leave trailing characters from the old name.

   Release notes & download
2. Version 0.9.2 Released Jan 29, 2026 First seen Sep 6, 2026

   Reverse Frequency and programmable squelch controls added, plus improved keypad lock retention and mute status indicators. — summary by updatemystuff.com

   Source: baofengtech.com

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   New Radio Settings Update: Added a Reverse Frequency switch in Radio Setting​s. 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 p​owering 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
   Release notes & download
3. Version 0.8.12 Released Oct 9, 2025 First seen Sep 6, 2026

   Added NOAA alarm volume control and fixed location sharing, channel selection, audio relay, and GPS time-parsing issues. — summary by updatemystuff.com

   Source: baofengtech.com

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   New Added NOAA Alarm Volume option in Sound Setting​s.

   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.
   Release notes & download
4. Version 0.8.4 Released Apr 29, 2025 First seen Sep 6, 2026

   Adds Bluetooth VOX for hands-free transmission and Scan Pause feature for easier scanning. — summary by updatemystuff.com

   Source: baofengtech.com

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   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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