OSSC PRO cannot obtain video signals from any input interface

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  • September 11, 2025 at 4:31 PM #67172
    yu song
    Participant

      Hello everyone,

      after updating to firmware version 0.79, OSSC PRO is unable to obtain video signals from any input interface.
      I thought I had encountered the same problem as others, so I flashed the firmware back to version 0.78, but the issue still persists, causing my OSSC PRO to be currently in an unusable state.

      My OSSC PRO was purchased last month with a new version featuring a golden logo……

      September 11, 2025 at 5:37 PM #67174
      BuckoA51
      Keymaster

        What does the LCD say, is the unit detecting sync? Do you have the grey test pattern?

        September 12, 2025 at 2:48 PM #67182
        yu song
        Participant

          The image of the test channel can be displayed, but when switching to all channels of AV1-AV3, “No Signal” is displayed.

          September 12, 2025 at 3:31 PM #67183
          Zacabeb
          Participant

            If it’s the display showing “No signal” it’s possible that the OSSC Pro has reverted to pure line multiplier mode of some variation the display doesn’t like.

            September 12, 2025 at 4:49 PM #67185
            yu song
            Participant

              I’ve identified the cause and resolved the issue. The firmware I was using wasn’t the version you provided on GitHub, but a version I downloaded from another location. After using the firmware you provided on GitHub, everything is back to normal. Thank you very much.

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