BLF A6 FET+7135 Light Troubleshooting and Mod thread

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.

I received my first BLF A6 on Friday, and can not get it to switch to mode memory or other mode groups. (i hate the standard next-mode set up and its finicky interface, and some times it won’t even turn on at all.
edit: i tried many, many times following the directions of the config, but can not get it to access the hidden modes, batt-check, reverse-mode switching, or go into mode memory. all it can do is switch between the 4-modes or the 7-modes groups, nothing else, and seems to be stuck in next-mode setting only.

Second edit: - i tried a hundred times, the 0.5 or sec press, and the 0.5 to 1.5 sec press, all half-press durations no matter what the time delay is, it always go to next higher mode. ( NOT backwards to the lower mode, or to the hidden modes. ) I have never gotten so frustrated in a flashlight as i have with this one right now. i believe i ended up with a DUD. gonna teat this light with a .300 Winchnester magnum resistance test soon. :rage:

Been thru that myself. Hope this helps:

After 15+ short taps, you go into so called configuration mode. After 15+ taps, light goes OFF and then there will be two sets of two blinks. The first set of two blinks toggles 7-/4-mode, and the second set of two blinks toggles memory mode on/off. You toggle a setting by turning off BETWEEN the two blinks.

To toggle mode memory, for example, after 15+ taps, light goes OFF, blink, blink, and then blink. You now turn off — before the second blink. You now set mode memory. Turn off the light. Turn on the light and go to Turbo. Turn off light and then turn on. You should now get Turbo.

Doesn’t matter what settings you have specified, it should never be next-mode memory. Something is physically wrong with that driver/light. I’d check for stray solder in the tailcap first, tben check for a good connection on the offtime cap on the driver

Tried all that many times. It does nothing to change the mode setting gs on my light.

I checked & tried everything. It is stuck with next mode memory and can not access any hidden modes or the batt check at all.

It sounds like your capacitor is either not draining at all or incredibly slowly. That means the driver always thinks you “short-pressed” (to use TK’s terminology) no matter how long the light was off.

looks like i got a dud…

I am about to trash this pile of junk. checked over the driver solder connections, switch connections, everything is ok. it is just stuck without any hidden modes, and has only next-mode memory and cant change it. I also broke off the tip on my snap ring pliers trying to get that threaded driver loose, and ended up scratching up the threads using pliers to get it loose. It looks nice, but a flashlight that has only next-mode memory and not work as its supposed to is a waste of money no matter how pretty it looks. :frowning:

Probably a dumb question…but where’d you get the light from?

From the GB link in the BLF A6 topic.

Ahhhh…well….i would hope you could get them to do an exchange. I was wondering if there might have been a chance of a “fake”…but sounds doubtful.

not worth an “exchange”, to ship the light back to china would cost 4 times its worth.

Dbsar we know you have modding ability, why not ask banggood (or neal directly) for them to ship a mew driver to you?

Prolly more fun to put it in front of a bullet. Try hitting it end on for a challenge. Personally I would try for a driver swap but then I don’t own a .300.

The major problem with the first batch was bad soldering in the head assembly. My problem — getting into the configuration mode — got “fixed” after BG sent me a head assembly replacement without sending in the head assembly as with many others.

I did send a note through Banggood about the defective driver, but have not heard back yet.

its a nice light, but hate the next-mode memory its stuck in. Its disappointing too to receive such an anticipated custom light that supposed to be perfected to our design & wishes, but to get only a defective one.

This one for problem solving. Its permanently fixed properly. :stuck_out_tongue: