Please click here to refer to this relevant blog, and it may help you with learn more aboutprogramming the radio.

Please kindly check if you have firmly plugged in the programming cable and selected the correct comm port. If you have other programming cables that can help test, please also try to program the radio using another programming cable.

All the software Baofeng has for download is Windows-based currently, and there is no programming software available for the macOS system currently. Please consider using Chirp to program, which supports the macOS system.

Please follow the instructions below and check if the driver installs properly:
1. Open the device manager

2. Plugin the programming cable to the computer

3. If there's no change or device shows up after the cable is plugged in, there are two possibilities, one is that you have not installed a driver yet, the other is that the programming cable is defective or the cable does not make a good connection with your computer.

4. Please click here to download the drive for Baofeng original cable.If the radio fails to be programmed again, please take screenshots of the error your computer shows and your device manager with the Other Devices opened when the cable is plugged in, and then contact us for further assistance.

There are several potential reasons why a radio might not be able to connect to a repeater. Please follow the troubleshooting steps below:
1.Ensure that the radio is set to the correct transmit and receive frequencies for the repeater. Repeaters typically have a specific input (receive) and output (transmit)frequency. Ensure all settings, including frequencies, offsets, and tones, are correctly entered.

2.Many repeaters use the Continuous Tone-Coded Squelch System (CTCSS) or Digital Coded Squelch (DCS) to prevent unwanted transmissions. Make sure the radio is programmed with the correct CTCSS or DCS code that matches the repeater's settings.

3.The radio might be out of range or in an area with poor signal coverage. Try moving to a different location or closer to the repeater to see if the connection improves.

Here are some troubleshooting steps:

1. Ensure both radios are programmed with the correct transmit and receive frequencies for the repeater. Verify the repeater's input (receive) and output (transmit) frequencies and make sure both radios match these settings.

2. Test the radios by communicating directly with each other without using the repeater. This can help determine whether the issue is with the radios or the repeater setup.

3. Try operating two radios in a far different location to see if the issue persists.

Please kindly check its frequency range, and the radio cannot transmit if the frequency isout of the range.

Please kindly check if both of them set the same CTCSS/DCS, and check the frequency you set if out of the transmission range.

Please check the CTCSS/DCS, the radios cannot communicate with each other properly if they set the different CTCSS/DCS.

This kind of problem shows up because the procedure of upgrading the firmware was wrong.
Here are the procedures on how to get it fixed.
1. Turn off the radio.

2. Plug the USB programming cable into the computer.

3. Plug the USB programming cable into DM-1701.

4. Turn on DM 1701 by Pressing and Holding the PTT button and SK1 button (the button above PTT).

5. The radio will enter an "upgrade mode", nothing shows up on the screen and the indicator light flashes red and green

6. Redo the firmware upgrade.Then turn on the radio again, and everything should be working properly.

To enable the VOX function, here are two methods:

1. Select the current channel to one of the 1-5 channels, press and hold the PTTand MONI buttons, and then turn on the radio, you will hear the voice prompt that the VOX is on. In this way, all 16 channels have been activated the VOX function and the user can talk directly to transmit without pressing the PTT button. 

2. You can activate the VOX function in the programming software. Select the VOX function and all 16 channels can use the VOX function directly. Normally turn on the radio and you can use the VOX function no matter which channel you are at.

The frequency range actually can be adjusted by yourself on the CPS. Would you please follow the instruction below and see if your UV-5RX3 can work well in the 220 band?

1.Open the UV-5RX3 official programming software and connect the radio to thecomputer.

2.Make sure the Port is selected correctly as the device manager shows and then read data from radio.

3.Edit the frequency range at the Frequency Range Setting under the Edit(E).

4.Select the frequency range 136-260/400-520, then click Write.

It is possible that there are blank channels on the radio. Please kindly note that you will have to ''Read'' from the radio before you program the radio. Otherwise, when you save data, you will input blank channels to the radio and the radio cannot work if the frequency is blank. Please try to input the PMR frequencies below:

If you confirm that there is no blank channel but the problem still exists, please set the region of your computer to be "United States of America geographical area" and change the keyboard to the American one. After that, please write the programming data to your radio again.

Please click here to download its new firmware and check if it works.

Please click here to  download new firmware to see if it successfully resolves the issue.

To switch between channel mode and frequency mode, please turn off your radio first, press and hold the MENU key, and power on the radio at the same time.

The MP31 radio comes in different versions. The version we sell has 16 repeater channels and a total of 38 channels. Kindly confirm the version you purchased.

Please kindly check if select the NOAA channels of "Scan Add" as the "Yes" option on the programming software.

Please click here to download its programming software and guide.