BLF A6 FET+7135 Light Troubleshooting and Mod thread

Does anyone know where I could buy a replacement switch (not switch cover) for my
BLF A6/ Astrolux S1? Or if not that do you know where I can get another equivalent that would still work in the light. I allowed the internal plastic pieces to get too hot during a spring bypass. In my defense it was my first attempt at a spring bypass of any kind. Why oh why did I not practice on a pos light first. The switch works about 3/4s of the time because I only damaged on section but it is still super annoying especially since I love this light as my EDC. Any help would be truly appreciated. I have learned so much on this site, learned and acquired yet another addiction (fishing, knives and sharpeners, ecig mods, and now led flashlights)
-Joey

premounted on board
switch

Thanks a lot SigShooter I really appreciate it

Originally, that was going to be a solderable way to turn memory on/off. It ended up not being necessary, but it was left in in case anyone else has a use for it.

Except stock firmware, are there any others we can flash driver?

It can run several others. Pretty much any 1-channel firmware should work, though it’ll only use one channel (you choose which). Or there are a small number of 2-channel options. I’ve been enjoying Crescendo on one of mine.

Thanks TK.
Lvp will work with other firmwares or it will need modification?

Depends on which firmware. In most cases though, you’ll at least need to set the LVP threshold to match the physical driver it’s running on. Those values change from one model to another, between brands, etc.

Thanks to DB Custom (and other posters that I can’t locate) for tips on improving my bypass:

How to turn of turbo timer ?

Turning off the turbo timer on the BLF-A6 requires flashing modded code onto the driver. The code is available, but it needs about $10 or $20 worth of other hardware for the flashing process.

I have the Astrolux version and it recently gets a spring bypass upgrade.

It gets hot much faster now and gets uncomfortably hot after putting usage.

Is that normal it there’s something I’m missing?

So… it sounds like the spring bypass worked. :+1:

Hi TK, thanks for the explanation. Love your work :+1:

Looking to do the Spring mod but notice something odd with my tail cap switch… It has the main spring as it should do but the is a smaller spring made if thinner wire loose (see attached image)Microsoft OneDrive - Access files anywhere. Create docs with free Office Online.

Anyone know why or what it’s there for

The inner spring is for lower resistance and higher amps / lumens. But it should be soldered to the board of cause.

oh eer urm

so it should be there to do the spring mod then

what would you suggest I do to correct this?

If you do the spring mod (bypass with a wire), the inner spring is not needed, it will not do much. You can just remove it if it is loose already.

Cool thats great…

Question….Is it possible to do a TEMP mod to check and see if I really need it?

What is soldered can be unsoldered no problem.