Thanks, did it. Still have not figured out what is wrong..
I've read it mentioned in another forum (forget now which version of the Vamo they were working on) that a blob of solder was hiding the screw that the ground wire was attached to, and they had to remove the solder to see the screw was loose. I read your post and see you have addressed that issue in other versions, but I would not count on any problems being fixed is subsequent Vamo versions, as they are made by different manuf from what I understand, and are still hand-assembled.
So you could remove that blob of solder to check the ground. If that isn't the problem I'd reassemble it and return it to the Vendor since it's only 10 days old.
Could be my imagination but seems like the V5s are having more problems than the V2s/V3s. I love my SS V3, swirls and all. If I ordered another Vamo today it would be another V3.
EDIT: If it isn't the ground then maybe the pin isn't installed on the PCB in the right position so that when it is assembled, it doesn't protrude enough into the Vamo's batt case to make solid contact, even if the batt is pushing all the way up (from a stretched spring). Did you happen to eyeball that before taking it apart?? Maybe the PCB was just 'seated too high" in the top? Because if it was a bad chip it wouldn't work initially, then give LowV, then work again when slapped in the hand. That's def a contact or ground problem, and there's only a couple places you could be going wrong there...
