My new D4Sv2 suddenly stopped working properly. I’ve only had it since January and it has had a couple of hrs use maximum due my rotation of lights and my tendency to baby new arrivals.
Configuration: Black, 26800 tube, steel bezel, 5000k 519a, brand new qb26800.
It’s weird, the last Emisar that gave me issues had a black body too. A curse?!? 
Symptoms:
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The main emitters flicker when turned on and will not produce much light.
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ramping behavior is inconsistent. Sometimes it has no effect on the main emitters and only the button brightness changes. Other times being at low ramp produced an almost-steady beam and ramping up caused tons of flickering. Mostly ramping doesn’t accomplish much
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turbo is also inconsistent. It seems that turbo works in the Advanced UI but not in the Simple UI. The flickering begins again immediately after exiting turbo.
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Factor reset changesd the aux leds back to the default rainbow cycle but doesn’t fix the issue with the main emitters.
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I was also able to reconfigure the aux leds with the 7c and 7h method back to what I had prior to the resets.
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bat-check works but the beam has flicker in the blinks
Can someone tell me which version of Anduril this light should have on board? I have the flasher and I could try re-flashing the firmware before I give up and ask Hank for help. This light has the FET driver with a backlit button.
What I’ve tried so far:
- multiple factory resets using different methods
- cleaning all contact points between the tube, the head, and the cap as well as both springs and the ends of the battery.
- using a different tube and a different battery
- switching between simple and advanced UI
I’m sure Hank will make it right, but I want to exhaust my own trouble shooting options first.
@ToyKeeper Does any of this sound like a firmware mismatch or software bug that a re-flash might fix?
