How to programme H777?

How to programme H777?
Retevis H777 is classic model, very high performance price ratio, makes it very hot sellings for years. We have not a few customers order this model consistently for big quantity. In Retevis overseas warehouse, this model is always prepared with enough stock, so it’s easy for shipping.

Now let’s go to business, do you know how to programme H777 when you get a new radio at hand?

Same Retevis radio model no. is with same default settings.
For new H777, just switch the new radios in same channel, they can communicate directly.

Programme H777 when you need make some changes:

Step:1  Please download and install H777 USB driver (USB Universal Driver) in RETEVIS official website
Step 2: You need a programming cable C9018A
Step 3: Connect your H777 with you PC, using progrogramming cable
Step 4: Turn on the radio H777.
Step 5: Now we come to H777 software interface

Step 6: Choose the correct communication port
(check in computer-device manager)
Step 7: Click” Read from Radio” in “Program” Column
Step 8: Write the date, such as “RX frequency”, “TX frequency” CTC/DCS DEC and CTC/DCS ENC in to the channels
For example:
RX frequency:462.2375
TX frequency 462.2375

Finally Step 9:Click “Write to Radio”. Then all datas will be save to radio.

Need know more about H777? Please feel feel to write to us, thanks!

51 thoughts on “How to programme H777?

  1. I am having an issue programming my H-777 to talk to my RCA XR150 radios. The information provided on the RCA radios have CTCSS at 67.0 and the CDCSS at 023, but the H-777 software will not accept the CDCSS at 023. Any ideas on what could cause the issue?

  2. I am attempting to update the configuration on my H777 but keep getting the “wrong password” error. I tried on Windows 10 and Windows XP, fresh system, fresh install, fully updated. Using the “Universal USB” driver and H777 Retivis programming software. I have tried 0000000 5000000 and 9999999 as well as blank passwords. Any recommendations would be appreciated.

    Thanks and kind regards,

  3. The current version is flawed in some way that causes all communication between the software and radio to fail. I uninstalled it and reinstalled the older version and was able to program my radios using my saved file. Also, why was the saved file changed to .xml instead of a .dat file? I will not be using the new software due to this issue.

    1. Hi, may I know your radio model? H777?
      We have updated the H777 software, now the new one saved file is .xml
      If you still want the old software, we will send you one by email, then you can write your file to your radio, then use the new software to get from your radio, then save it as the new file with .xml

      Let me know if you need or not! My email:

      best regards

  4. What is the 6 digit password for H777 software? It’s not allowing me to read the radio and make any changes. There is a 6 digit password requires.

  5. Hello,
    when I try to program my H-777s I see it tries handshake, then I get a failure! message. Any suggestions?


  6. Hi I’m having trouble with my radio it’s a model: H777S .. everytime we plug in the headset it doesn’t work, but when we unplug it, it works

    1. hello! you can check the headset is matchable or not, and check the headset plugin fully, or change other headset and have a try. if they do not work, it should be the product problem! You can contact us through our Facebook and

  7. hello. I can get the program for the H-777 to read the device but it fails on the write to device. Fails after the handshake. please advise. Thank you!

      1. yes it did show the info. yes the programming cable is correct. it worked with my last batch of radios. I noticed that the file is now a different extention file is that the issue? Let me know as I need to get these programmed to talk to my other radios.

        Thank you!

          1. James,

            We have the same exact situation, we can read from the radios but failure on the handshake to write. I don’t know what other software you have other than the latest H-777 programming software but we could sure use it. We have frequency changes to make ASAP. Thanks.

  8. I am working to turn the alarms on for all of our radios but every time I click write to device, it claims the action has failed. Any advice?

  9. Good day.

    I can’t reprogram my H777 radio with your new software. I can read the current frequencies ,but can’t change any.I’m not sure if it’s old or new radio, but just for reference:
    Model H777
    Output power 5W
    Frequency: 400-470 Mhz
    Voltage DC3.7V
    S/N 1811R7771120847
    Please help with solution.
    Thanks in advance.

  10. hi i have a problem with the new software version to program my h777 radio.
    I can read but not write on the radio it tells me failed, will it be for the new version ..?

  11. Have had my H-777 radios for 6 years. I am needing to change the frequencies on them but the new software will not allow it. Can you please provide me with the old software that allowed those changes. Thank you

  12. I can read the data out of the radio, but I can’t change the frequencies – the field just will not let me type anything in. Any ideas? Can you email me the old version of the software? Some people indicate that the old version works.

      1. Thank you – I did receive the new file you sent me, but it was the same version as on the website, 1.0.2, and it has two problems: I can’t change any of the frequencies and I can’t write to the radio, it just gives an error of “Failure”. Do you have an older version of the software you can send? Other say that the old version works better. Thank you!

  13. This software clearly does not work and I don’t understand why you keep telling people to do the same thing over and over again. Please send me the software that actually works to write to these radios, I purchased another set of 20 and need to program the old ones to match the new ones.

  14. Can you send me the older version without the password option? Can’t get past the password fail…I have older radios…3 or 4 yrs old

  15. Hello,

    I am having the same issue. I can read from it no problem, but cannot write to it.

    Also, the Rx and Tx fields are not editable.

    Can you please send me the older version? The version I am using is 1.02 Built on 2020

    Thank you!

  16. 1) Kindly send me link to old version of software. I can only read my radio with new software. Cannot write to radio.

    2) Please explain how to get low power setting to work. Regardless of setting high or low Tx power, my H-777 radios only transmit in high power around 4 Watt.

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