I know this is an old thread but I'm posting because my experience was so similar to the OP, and may be relevant to anyone contemplating purchase of a Mobius camera.

I bought my Mobius Mini from the same reseller, mobiusactioncam.com, and it worked great for 7 months. Then it refused to turn on. After following all the advice in the (slender) manual I contacted support, who eventually replied with no useful suggestions. When I asked them to fix my camera, "Vince" replied “We don’t do repairs”

This reseller may have gone broke now since their website doesn't seem to exist any more, and I see that Mobius cameras are being sold through a number of different sites. However my advice to anyone thinking of purchasing a Mobius camera is to check the warranty policy of the reseller very carefully!!