I originally ordered this flash on January 22nd. After testing and a few shots I thought it was a great flash. Then, without warning, about a week ago, this thing just wouldn't turn on. I'm not sure if it's the lithium battery or the device itself, but I can't seem to get it to work. Since it only works with the battery that came with it, I have no way of testing it with other batteries to see if that's the problem. This is very frustrating!
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