BLF A6 FET+7135 Light Troubleshooting and Mod thread

gismo, you may want to use the blf-a6 code branch instead of trunk. I think it has the values calibrated to match banggood’s drivers. Or use the values in battcheck/readings/manker-a6.*. Or measure them yourself using the other tools in the battcheck/ directory. The process is explained in the README file there.

ToyKeeper, the code from blf-a6-final branch did the job.
Thank you for your prompt response and for your contribution to the budget light community! :+1:

A couple months back I received a BLF A17DD-L driver that would misbehave.
Basically even though I would trigger a mode change, the output always stayed at the lowest level.

Today after a brief inspection, I found out that it's missing the R1 22K resistor - probably a factory defect.
I read that the resistor is part of the voltage divider.
Since I don't have the exact same Ω rated SMD resistor in hand, could I replace it with a different valued one?
What's the Ω range that I should shoot for?

Pic for refference

If you change the resistor value, it’ll mess with other things too… and you’ll have to recalibrate and reflash the firmware, assuming it even works at all.

The calibration process is documented in the ToyKeeper/battcheck/ directory.

Thanks for the answer ToyKeeper. Your readme describes thoroughly the whole procedure.
As you might have already guessed, I won’t be going through the hassle :slight_smile:

Hi all!

I damaged the LED so I need to replace it. I have the 1A version (cold). Can someone please tell me where I can find a replacement? What exactly do I need? If it is possible to replace the whole head… even better. So I can spare myself of soldering. I can’t find any parts on the web :(.

Thank you!

Grab a Noctigon MCPCB with an XP-L or XM-L2 emitter already installed, probably from somewhere like intl-outdoor.com, and it should be pretty easy to replace the emitter and the board it’s soldered onto. Just get one matching the original MCPCB size, and it should work fine. This will require unsoldering the +/- contacts though, then soldering those wires onto a new board.

BTW, if you want it more throwy, try XP-L HI.

My favorite for this light is XP-L 3D or XM-L2 3D. They give a nice wide hotspot in a neutral tint. I don’t recall offhand which one fits the centering ring better though.

MCPCB CREE XP-L V6 1A LED on Noctigon 16mm MCPCB
Thermal compound under the MCPCB Search - compound
As your from greece this may not be a good shipping option but this is what you’ll need for the swap.
16mm copper board with led and thermal compound to transfer the heat to the flashlight.
Fasttech, or Kaidomain, may be cheaper on you from your location.
The swap will require soldering as Toykeeper explained. Not very high on the difficulty scale.

Thank you both for your suggestions!

Hey guys, I need an other advice. It is not possible to unscrew the head of the lamp. And I mean, I cannot unscrew the tube that contains the driver & the LED from the tube that contains the reflector. Anyone who had similar issues? Any suggestions? I don’t want to damage the tubes, thus I did’t use any tools, but for sure I tried very hard, it’s just not possible. Thank you!

If you have a pair of rubber gloves lying around, that might give you a bit of extra grip. Otherwise, you could try a pair of strap wrenches, although you might be just as well buying a new light for the cost of the strap wrenches and the spare parts.

Rubber gloves made the job! That was I great idea! Thanks a lot Phlogiston! Cheers!

Excellent! I’m glad it worked :slight_smile:

We have an A6 each and are waiting on the tools mentioned in this thread Guide: how to flash ATtiny13a based drivers (NANJG, QLITE, etc.) with custom firmware to arrive… But my question is this what else can we do with regards to modding/flashing the firmware? what othe firmwares are there?? I have the the 11mode(think its that) and partner has the 7/4 mode firmware… Could we flash the 11 mode version on her A6? if so where do I get it etc?

looking forward to pushing the A6 further

regards
Lohtse

Click the Link in my signature for more information about these things.

Already watch/reading them…but a lot to go through so was hoping for quick answers to point me in the right directions

The INDEX file has a list of firmware projects sorted by various criteria. I’d suggest looking for projects which list support for dual PWM, attiny13, and clicky switches.

ok and thank you….Can i flash the 11 mode firmware on partners A6 is so which is it?

I don’t even know what the 11-mode firmware is. It doesn’t sound familiar, unless “11” means “7+4”.

On mine, I run something a little different… cypreus2. It’s similar to blf-a6 in the 7-level mode, with no memory and no config options. But in the hidden blinkies, it has a lot more modes:

(the current version is rearranged a little, but this shows the general idea)

I believe you once mentioned that ( Code now public! BLF A6 FET+7135 Light. Short 18350 tubes and Unanodized Lights Available - #6194 by ToyKeeper) that I had Bistro flashed on mine when I one asked why it didn’t match the advertise setup… Where as my partners had the stock/first firmware… SO does that mean I can flash the bistro firmware? and s the currrent one in the index same as the one flashed on mine?