Yep that’s the one. Tried the bridge (pin 2 to ground) and ended up with 1 mode (high). I must have bridged pins 3 and 4 via the trace. Cleaned up the solder so that pins 3 and 4 aren’t bridged and ended up with 1 mode again but this time it was low mode. I must done something to the microcontroller by running voltage with pins 3 and 4 bridged. Here’s a pic of how it ended up. Everything looks good except it only has low now.
Is there any hope of recovering this driver?
I’m thinking that a FET + 7135 may be the way to go if moonlight mode is wanted.
Update: I got it to work! —> I removed the copper wire and soldered the pin with a “2” next to it to ground. Moonlight mode is now activated. Moon mode with this driver is not super-low (like firefly) but provides enough usable light to comfortably read books, maps etc in the dark without compromising night vision.
I think I see the problem. The pin closest to the ground ring is marked with a 2 and has a tiny pad (on the right of your picture) bridge that to ground.
So I just received a notification of activity on this thread today (February 28th) and it looks like the last activity was on January 30th....
I think I just need to start checking in here every day since it seems like notifications have been flaky lately.
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Going forward I am going to label all of them by pin number; the old "Pin 5 = 2; Pin 3=3" nomenclature harkens back to the 105C/QLITE driver configuration "stars".
I am still working on it. Had to get through the holiday rush...the 17mm is working well in my light, just need to make a few final tweaks then order boards.