Hi. I have an issue with my MF01S.
When I screw the head, the sst20 leds blink once but neither the switch nor the aux leds light up.
The flashlight works but it functions problematicaly. I can only switch it on/off and use ramping.
Neither turbo, strobes, battery check etc.
Also, each time that I turn it on, the light pulses for ~1 second.
The last time that I used it, it was working fine.
I tried cleaning the contacts and using different batteries and battery tube but no luck.
Any help will be appreciated.

Is your light in muggle mode?

Yes, I should have read the manual more carefully! Thank you! :+1:

Glad I could help!