Sorry to hear. It seems somehow you got a bad batch of S2+ flashlights. Have you let Simon at the Convoy Store know about this? Maybe he has some insight as to why this happened.
I have four S2+ lights. The two I got a little over a year ago lockout with a quarter turn. The two I got a couple months ago flicker until the tailcap is nearly off. The new lights have the different threads, but I don’t know why that would make a difference.
It appears from Bruno Burski that the newer S2+s with the square threads have this issue. All of mine are older with trapezoidal threads.
I would contact Simon and ask him about it, but it’s up to you. I’ve never had an issue with accidental turn ons with mine. And the twisting the tailcap lockout feature is not mentioned for the flashlights, so I don’t think it would be considered a defect.
I have three lights with square threads from an order placed early January and they all lockout between 1/4-1/2 a turn. Using either 18350 or 18650 tubes.
After testing the lockout on one of my S2+ lights, it flickered until the end cap was nearly off. It also seemed to go into config mode. Now I only have one brightness setting of about 10. Short taps will not change brightness levels. I also cannot enter config mode with multiple short taps. The light is stuck in 10 brightness. Any suggestions?
Update: Now the light is dead. It does not work at all. Maybe the flickering shorted something out. I do not recommend testing the lockout on an S2+. I should have left well enough alone.
I gave up messing with my brown one as it was doing the same thing as yours. I couldn’t get the tape to work on the brown one but it does work on the silver one. Sorry ’bout getting you to mess with yer light. Maybe put a fresh battery in…?