Canon 580exII go to sleep and v6 do not wake up them.

Just have received v6 and is playing with them and my Canon 580exII. Problem is that the flashes go to sleep after a few minutes of inactivity and the test or shut signal do not wake them up. i need to manually turn the off and on to keep working. Any solution?


  • I know that sleeping mode may be disabled in the flash but if there is another solution which would not drain my batteries too fast, please advice.
  • Thank you for the feedback. Our engineering team is investing this issue.

    I'll keep you posted.
    Ray Chan

    Senior Product Specialist
    Harvest One Limited
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