I have had my S2R for around three months and it has functioned perfectly until today. Just today my flashlight seems to be stuck on lockout mode. I had got it to a full charge four days ago, I tried holing down the button for ten seconds, removing the tail cap, following the manual for turning off the lockout mode, recharging it, and yelling at it! I am out of ideas and hesitant ship my flashlight out, any suggestions would be beneficiary!
Try to reverse the battery ... only works one way in your light. Good Luck. May be helpful operation video:
Thanks for the help! I had just got it working: I unscrewed the tail cap, took out the battery, put the battery back in, and as I screwed in the tailcap I held down on the button causing it to finally change modes.