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In the middle of a shoot, I had the idea of doing some off-camera flash pictures. This is the gear I used:

  • camera: Nikon D7100
  • speedlight: Yongnuo YN685
  • radio trigger: Yongnuo YN622 TX-N

I realized that I had forgotten the flash stand in another room. So I managed to balance it on the ground. My idea was to make some effect with a coloured gel behind my subject. The radio trigger fired the flash.

But afterwards, when I tried to put the speedlight back on top of the camera, it would not turn on. It had new batteries in it, but wouldn't power up at all. I did not smell any burning. Did I make a mistake by firing it while it was on the ground?

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    Are you SURE your batteries are alright? Wouldn't ask if I hadn't been bitten before by assumptions about batteries :) – rackandboneman Nov 26 '18 at 17:18
  • My batteries were still new but it won't power up at all! – Tiany Slowriver Nov 27 '18 at 9:23
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You have to turn the flash off of Slave Mode and turn it back to the normal setting. When in slave mode, the hotshoe won't trigger the flash. 622 R. Slave Trigger Mode - Put the flash into 622 R. Slave mode by holding down to the Mode button until the mode is flashing and then using the wheel to scroll through the options.To switch it out of Slave mode, just choose the option to bring it back to normal.

  • It's kind of hard to change modes if the flash refuses to power on. – Michael C Nov 27 '18 at 0:43
  • Yeah, you're right. How would I change settings while it doesn't power up at all! – Tiany Slowriver Nov 27 '18 at 9:25
  • My bad, my understanding was that his flash wasn't firing when he put it ontop of his camera. If the flash unit is not powering on at all, then I am honestly not too sure. A flash unit will not be damaged from firing it off the ground. – Aperture Life Nov 27 '18 at 16:06

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