Archive of GD-77 firmware uploaded to GitHub

posted in: DMR, Ham radio | 11

Because Radioddity do not seem to maintain an archive of all the firmware versions that they have released for the GD-77 I have decided to add those files an existing GitHub repository I created some time ago to document various aspects of the GD-77


The firmware file I have copies of, have been uploaded to


This includes versions not officially released and versions which have been subsequently withdrawn


3.1.0 was subject of a soft launch and then removed

3.1.2 seems to be a pre-release / beta, which for some reason has not been released as an official version, despite it being soft-launched to various places, several weeks ago.


I’ve also included the updater exe and its support file, as this works with all firmware versions.


I know there were other versions, with 2.x version numbers but I don’t have copies of these, and some of them were very buggy, and withdrawn by Radioddity.

However I will try to get hold of these missing version, just so that a complete record is kept, as it may eventually help us jail-break the GD-77 firmware.



I have added some more versions.

This is potentially all there ever were, but if anyone knows of any versions I’ve missed and has those versions, please let me know

11 Responses

  1. ken

    2.6.9 is here >>

  2. Roger Clark

    Thanks Ken

    I’ve downloaded that and uploaded just the .sgl (firmware) file to GitHub

  3. ken

    no probs, always happy to help if i can

  4. Savo


    I want to report a bug in version 3.1.2. Bug is in Scan lists, you can create a new scan list and add channels, but you can not delete them or move channes up, or down.
    Does anyone have a similiar issue?

  5. Roger Clark

    Is this on the Scan List screen ?

    I added some channels to a scan list and the Up and Down buttons work OK for me.

  6. Savo

    Yes, this is on scan list, I do not know what ahppaneded.. maybe is this related also to CPS..I have 25 scan lists and If I want to add chanels to 24th or 25th I can, biut if I reopen them again, channels disaper. This happened only to last two. On other Scan lists, I can not edit them.

  7. Savo

    HI Roger.. FALSE ALARM.. sorry… I have downloaded again latest version of CPS, installed it again and now everything is working fine without any problems in Scan lists…. I do not know what happened…

  8. Roger Clark

    Hi Savo

    I know some changes made by Mike DL2MF had some side effects, but I’m not sure if he changed the scan list screen.

    I have been correcting some issues in Mike’s changes, so perhaps that’s what happened in this case.

    Anyway, at least its working OK now. 😉

  9. Anonymous

    Is there any chance we’ll see release notes for the versions of the firmware?

  10. Roger Clark

    I don’t have the release notes

  11. EvO

    Some news fro Radioddity:

    [New] GD-77 Update Firmware & Software V3.1.3

    Repair Firmware-GD-77 [Only Frequency Offset Problem Radio]

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