How to Upgrade the Firmware on the Retevis MA1 to Resolve Frequency Offset Issues

JJ
Mar 13,2025
- 0

The Retevis MA1 moible Radio is a powerful and versatile UHF/VHF 50W high power amateur radio designed for the radio enthusiast who demands reliability and performance. With its removable front panel, rugged construction, and advanced features, the MA1 ham radio is well suited for both amateur and professional use. However, as with any complex device, firmware updates are occasionally necessary to optimize performance and resolve issues. One common issue users may encounter is that the frequency offset is not corresponding correctly. Fortunately, this can be easily resolved with a firmware upgrade.
In this guide, we will walk you through the steps to upgrade the firmware on the Retevis MA1moible radio and resolve frequency offset issues.

Step-by-step guide to upgrading the Retevis MA1 radio firmware

Step 1: Enter Master Update

Press and hold the Band+ button and the Power button simultaneously to turn on the moible radio.
The Retevis MA1 ham radio will enter Master Update mode, indicating that it is ready for a firmware upgrade.

Step 2: Prepare the Upgrade Software

Download the firmware upgrade software from the link provided
US: Upgrade Software
EU: Upgrade Software
CA: Upgrade Software
other: Upgrade Software

Unzip the file to access the upgrade tool.

Retevis MA1 UHF VHF 50W High Power Amateur Ham Radio with Detachable Front Panel

Step 3: Select the Correct Port

Connect the Retevis MA1 Amateur radio to your computer using the appropriate cable.
Open the upgrade software and select the correct COM port for your device.

Step 4: Open the Upgrade Tool

Launch the upgrade tool from the unzipped folder.

Step 5: Select the Upgrade File

Select the file shown in the image

Step 6: Start the Upgrade Process

Click Upgrade to begin the firmware update.
Wait for the process to complete. Do not disconnect or turn off the radio during the upgrade.

Step 7: Reboot the Radio

After a successful upgrade, power off the Retevis MA1 50W radio and power it back on

About Retevis MA1 UHF/VHF 50W moible radio

The Retevis MA1 is a high-performance amateur radio that combines powerful features, versatility, and user-friendly design. Key features include:

1.50W high power output: Great for long-distance communications.

2.Removable front panel: Flexible mounting options for ease of use.

3.Dual-band UHF/VHF support: Wide frequency range for a variety of applications.

4. Full-Band Coverage: Supports 2m/70cm amateur bands + FM/AM/aviation bands, enabling real-time monitoring of public safety, aircraft, and government communications.

5.Cross-band repeater: Unique cross-band repeater function extends handheld device range, ensuring emergency communication continuity in remote/mountainous areas.

Summary: Professional-grade performance for demanding scenarios

The Retevis MA1 50W high-power mobile radio redefines mobile communications with its detachable front panel, multi-band coverage, cross-band repeater capabilities, and superheterodyne receiver technology. Designed for adventurers, first responders, and communications enthusiasts, this rugged mobile radio ensures clear connections in different terrains and emergency situations.