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Pete
Pete, Electronic Engineer
Category: Camera and Video
Satisfied Customers: 15749
Experience:  Over 16 years of experience installing and repairing electronics.
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Today, during a wedding I was booked to shoot, both of my speedlite

Customer Question

Today, during a wedding I was booked to shoot, both of my speedlite 600ex-rt flashes were giving me trouble. One had an '!' On the display screen of the flash & wouldn't fire, and the other one would only fire when it felt like it. One of these are recently repaired & the other is brand new & my batteries were brand new. Anyone had any problems like this or any suggestions before I send them in to canon for repair? Thank you in advance.
-Alexandra
Submitted: 1 year ago.
Category: Camera and Video
Expert:  Pete replied 1 year ago.
Hello Alexandra,
I am Pete, and I'll be happy to assist with your question today.
The ! indicates that there is a problem of some sort. usually it will be followed by some letters (e.g. WP = Wide Panel problem)
If the other flash is only firing sometimes, then it may be due to the settings on your camera - test it with a different camera and let me know if it performs better.