I have disassembled the retaining ring but I can’t disassembled more, how can I take the light down?
Check underneath the driver for any other loose bits from manufacturing, maybe wipe it out with a q-tip and reinstall the retaining ring snug but not cranked hard. Also unscrew the bezel and check under the reflector for any loose bits there. Be careful not to touch the reflector surface as it’s easy to scratch and hard to clean without scratching.
If you want to actually remove the driver you need to remove the bezel and desolder the emitter wires then pull the driver out. Why do you want to pull the driver?
I want to clean up the reflector which has some debris inside. I need to unscrew the bezel to remove the reflector? It’s really really tight so hard to unscrew it.
It is recommended to only carefully clean a reflector with compressed air. If you touch the reflective surface with anything the chances are you will ruin it.
Does it unscrew like this?
Yes , like this.
I don’t want to give up, but that is really really tight. Is there any tips to unscrew it?
Latex gloves or a swim cap. Rinse off any talc powder in the gloves to keep them from slipping on your skin. There’s probably metal debris in the threads and it was over tightened. No gloves? Use a piece of bicycle inner tube.
Mine were really tight when I got them. I just wrapped them in duct tape (lots) and took 2 small pipe wrenches to them. They unscrewed in a jiffy without any marring or damage.
If you do that you’ll want the wrenches located over thicker parts or doubled layers like where threads overlap. Avoid the reflector area since the wrench could more easily crush that. I would reinstall the battery tube and apply the tape over both it and the pill section so the battery tube could reinforce the pill then a separate set of wraps on the bezel with the wrench located down the bezel where the pill threads can reinforce it as well. The tape alone might improve grip to the point you can wrestle it open. What 3-4 layers or more?
That’s essentially what I did. Taped over the thickest parts leaving the joint free of tape and also had the battery tube in for more support. Had at least 4 layers but I can’t recall exactly how many, and definitely as far from the reflector as possible. Using smaller wrenches is better in this case. It only took a small push on the pipe wrenches to get the parts moving. And once it did I took the wrenches off and just unscrewed the rest by hand. The important thing is to get some movement.
It goes without saying that you have to put the wrenches on the tubes so that the jaws tighten as you try to loosen the parts, and of course that means that you don’t have to overly tighten the jaws onto the tubes. If one reverses it then it’s not going to work well 
I have some lock jaw pliers I could have used as well but I happened to have the pipe wrenches in a tool box where I was and didn’t feel like going down to the basement.
Thank you for all you help. I unscrew it finally, as I used rubber band.
:+1: of course!
Hoping you can help me out here. I was stupid and put two 18350’s in my A6 and it flashed really bright and now all I get is what looks like 4 moonlight modes. Did I break something? Does it need to be reset somehow?
Working Voltage: 2.8-4.35v
It might break the driver or LED. You can order the new driver from banggood.
http://www.banggood.com/BLF-A6-A17DD-L-FET1-2_8-4_35v-74-Modes-Flashlight-Driver-p-1009980.html
Using f65358 coupon, $5 plus shipping fees.
You have to be able to solder the emitter wires. Emitter might also be damaged
I would test the emitter and drivrr first before making any orders.
and since you’re in the US, buy the replacements from mtnelectronics rather than the cheaper ones from China.
You’ll get a better-built driver, and a warranty that’s worth something.