yongnuo yn600ex rt 2 ettl flash firmware

  1. M

    Yongnuo YN600EX_RT 2 speedlite firmware update problems!

    I have just bought the Yongnuo YN600EX RT 2 ETTL speedlite flash for Canon and and now wish I hadn't! Having been trying to download and install the recommended firmware update I have now given up. I tried for several hours to download and install the firmware file to my Mac but am defeated at...
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