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Thread: downgrade firmware on a series 5, 5100

  1. #1
    coopcity6 No Longer Registered

    Thumbs up downgrade firmware on a series 5, 5100

    So here's the story I took a 900 meg Johnson 5100 did the firmware update and realized I used series 4 f/w on a series 5. Z
    Now the radio has BAD F1 FMT on the screen. Considering the radii worked prior to update can you go back in f/w to have a functional radio?


  2. #2
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    You've already got an open thread with people trying to help you with this problem. DO NOT start multiple threads on the same issue, please!