Welcome guest, is this your first visit? Click the "Create Account" button now to join.
Results 1 to 7 of 7
  1. #1
    Junior Member
    Join Date
    Jun 2019
    Location
    Romānia
    Posts
    2
    Rep Power
    0

    Default Kenwood dnx 7220 Pre-Boot and Firmware Flash

    Hi, I have a media unit, which does not work Garmin gps and does not connect to the PC. I think it is the problem of hardware intervention.

    present the images, I think it was updated incorrectly, it does not connect to the PC and neither sd card does not run it. I would like to tell me the procedure to apply.

    Spoiler: images
    [Only registered and activated users can see links. ]

    [Only registered and activated users can see links. ]



    Welcome to Forum.
    Please, use spoilers for large pictures. And do not post consecutive posts...Read carefully:
    [Only registered and activated users can see links. ]
    and
    [Only registered and activated users can see links. ]

  2.    Advertissements


  3. #2
    Junior Member
    Join Date
    Jul 2019
    Location
    Bulgaria Nessebar
    Posts
    1
    Rep Power
    0

    Default

    This happens on DNX7220 models. You will have to disassemble it and reach Garmin GPS board inside. On the bottom of that board there is a small button. You will have to connect it to PC or notebook via rear mini USB connector. Keep that button depressed and power the DNX unit still keeping button depressed for about 10 seconds until you hear USB connect ding sound on PC. Depress button and wait for a few seconds to see if PC opens directory tree with Garmin files in it. When it does, simply turn off everything and put DNX unit back together. GPS will be reset after this procedure. If Garmin board fails to connect to PC then it needs replacement. When you open DNX unit, clean SDcard holder with contact spray. This usually happens when SD card is not working correctly because of the dust in the holder and DNX unit begins to mess with Garmin GPS unit's inner memory. Hope this will work! Good luck.

  4. #3
    Junior Member
    Join Date
    Oct 2019
    Location
    USA
    Posts
    5
    Rep Power
    0

    Default

    Sorry I can't send a PM, not enough posts.
    Can other kenwoods be opened and connected to PC like this? My dnx995s seems to have firmware that blocks unlocked maps, but maybe if I am able to view the directory tree, it's worth trying to manually put in an unlocked image straight to the internal memory? I wasn't able to find any disassembly videos.
    Last edited by ajent; 6th December 2019 at 12:48 PM.

  5. #4
    Junior Member
    Join Date
    Jun 2019
    Location
    Romānia
    Posts
    2
    Rep Power
    0

    Default

    I disassembled the unit I found the garmin board which is separate as a module, but I can't find the button.

  6. #5
    Member
    Join Date
    Apr 2016
    Location
    Australia
    Posts
    11
    Rep Power
    0

    cityxplorer

    I have a DNX4330DAB have done an update to latest version software
    Problem is Garmin does not work
    Screen shows small test image not seen down each side of screen
    Gleaned info that there is error with base map
    How do I fix this does the above steps work for my model
    Another question how do you get a copy of these files to repair the corrupt files
    The garmin part has not worked since I put it in the car YES IS A SECOND HAND purchase was told all working now tring to FIX it
    Like other post said no button till I get inside no idea what I find
    Is it the fact that a PC goes beep and shows the tree structure is the fix seems strange
    Spoiler: large image
    [Only registered and activated users can see links. ]


    After reading some posts seems I need to get into this internal USB
    So hoping doing the get to internal usb some how get it to talk to a pc check out the files
    Wonder if it can be removed from unit and connected to a pc or does it need its own power from the stereo
    Last edited by Youngwombat; 13th March 2020 at 12:32 PM.

  7. #6
    Junior Member
    Join Date
    Dec 2015
    Location
    molodova
    Posts
    1
    Rep Power
    0

    Default

    find this file img_rsrc_800x420.gir and put it on the internal garmin folder and restart unit

  8. #7
    Junior Member
    Join Date
    Jan 2009
    Location
    australia
    Posts
    3
    Rep Power
    0

    Default

    Mazoot
    Do you know where I can find this file. I think it will fix a problem I have with a KNA-G610
    Thanks
    Last edited by Boki_Srb; 4th June 2020 at 08:55 PM. Reason: removed unnecessary quote

 

 

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •