My Brass CooYoo just arrived today and sadly it doesn't work I've tried multiple charged 10180 batteries and nothing gets even the faintest output. The usb charger led comes on when I plug the body in but that's the only sign of life in it.
I don't suppose anyone has any ideas on things to try to bring it to life?
Time to find out what GearBest's customer service is like!
I receive mine just the other day and having the exact same issue with the twist flickering.Received my SS version today. Much smaller than I was expecting (much shorter than my LED Lenser K2), and a nice neutral(ish) tint.
The only "issue" is that during the twist, there is a long period of flickering low mode light before it reaches a point where the light is constant. Is this normal? (I've not owned a twisty before).
Does it flicker from off to low or from low to high. ie: does it get brighter when flickering or darker ?
Oh, and did you also clean the contacts above the charge port? The brass 'nub'.
Last off, I found on one of mine that some bits were caught in the head under the flexible hi/low plate. A blast of air cleaned that out.