+1. Love mine too. After a few months of ownership, I’d say it’s my favorite overall flashlight. It’s very bright, has the best UI, tint, and battery life. My hat’s off to all involved with its design.
I was responding to teach's post. I misread his posts to be a slight at Meld. Whether I misread or not, my post was not appropriate. I apologize teacher.
No problem my friend, stuff happens. :+1:
And of course apology accepted totally. 
I was trying to say that in the Q8 I liked ramping better than presets.
I had never even heard of MELD but was interested & after readin what was suggested…. it is indeed impressive.
Anyway… I hope we are good ImA4Wheelr. I have always enjoyed your postings & look forward to enjoying more.
Best regards………
Unfortunately this fix only lasted about 48 hours before the LEDs both went back out. I fiddled around with the soldering iron again and they lit up, but then again died after a couple days.
Any recourse here for repair? I don’t think it’s the LEDs that are bad, as probing the contacts with a multimeter set to continuity mode lights them up bright as day.
Just replacing the switch for a new one as mentioned earlier.
Yeah, after posting I started looking back through the pages and saw that people contacted The Miller, who helped them get replacement assemblies. The Miller seems to have been offline for over a month though, so I see joechina stepped up to offer help. I sent them a PM and will follow up with an email to chendongling@banggood.com if I don’t hear a response. Will keep BLF updated!
I just ordered it from ThorFire via Amazon for $58.24 with free 2-day delivery. I hate waiting for the slow boat to arrive when ordering from China.
Glad to see this thread isn’t going away. The video about meld software was amazing. Not that I understand it. I don’t understand what Narsil is either. That mini Q8 that Everett had is really cool. Who makes that? I can’t follow the GT thread. Too long. I had to be away a few days because of the superbowl and I couldn’t follow any BLF threads.
Thanks SayPat for mentioning the MELD I had completely forgotten, I had read a brief comment some time ago, 2014/15 I think, so went and found his blog following your UTube link, so just wanted to say thank you,
Anyone have the thread on how to update the firmware i think i need a usb stick and some other hardware. I want ToyKeepers lightning mode.
Narsil is basically a ramping software for lights with e-switches. It also has a second user interface built in for discrete individual brightness levels.
That light in the video is the old Blackshadow Rook. It uses 3 AA or 3 14500 cells. I don’t think it’s sold anymore.
It’s pretty complicated, to me at least.
I’d really like to try it but I am afraid that I’d brick my light.
Same here. I’d rather mail my driver off to someone and get it reflashed.
Also, ToyKeeper has links to reflashing in her signature.
Most likely this question has been asked somewhere in this thread, but as there are 560+ pages, it’s a bit difficult to find the answer.
My question is: Got another BLF Q8, and putting it thru the usual tests to check if it has any issues. I quickly did the voltage check, temperature check and found a problem: the temperature is grossly incorrect (it reports about 15-25 degrees higher than my first BLF Q8).
For instance, a digital thermometer reads 30 deg Celsius right now (room temperature). Both BLF Q8s are rested for at least 10 minutes and cooled down from last turn on. Checked my first BLF Q8, the temperature check blinkout reads 25 deg Celsius (still OK). The second BLF Q8’s temperature check blinkout reads 50 deg Celsius (and the flashlight is not even warm to the touch).
I’m afraid with the grossly incorrect high temperature readout, it may step down much more quickly since it thinks it has a high temperature when being used — is that how it works? Or is the wrong temperature readout mean something else?
If I am not mistaken the flashlight doesn’t use the sensor in default settings.
Default is using a timed stepdown after 120s.
Ok thanks for the explanation. So, the BLF Q8 uses a timer-based stepdown instead of actual thermal sensor (eg. Bistro firmware in BLF X6v2)?
But is there some way of recalibrating or at least resetting the temperature readout to closer to actual temperature (when it’s been OFF for quite some time already). The first one was only about 5 degrees (or say 10 degrees) off. But 20-25 degrees off is alarming if I go by the Q8’s internal temperature blinkout…
~
Just tested the auto step down from Turbo (battery voltage around 4.05v), did a temperature check which blinks out 74 degrees.
Did the same test with those same batteries on my 1st BLF Q8, until Turbo did an auto step-down and immediately did the built-in temperature check, which blinked out 45 degrees.
(I’m presuming the temperatures of both BLF Q8s should have been pretty close when doing the step down from Turbo…)
Look in the manual. You can set it to use the thermal sensor and set a relative step down temperature which doesn’t need a correct temperature reading.
To complete the information, you can also set the timed stepdown (I believe there are 4 options, up to 5 minutes, I can be wrong).
I have my stepdown at 3 minutes and that is about right at roomtemp without airflow.
The issue with the q8 temperature sensors is they are not zero’d in the factory. They are accurate in only a proportional way. In other words, the actual starting temperature may not be correct but if starts a certain point and the light gets 20degrees c higher. That twenty degree increase is correct. If one q8 starts at 25degrees and the other one 35 degrees, if they get 20 degrees warmer then the first will show 45 degrees c and the second will show 55 degrees c. I’m on my phone so it’s hard to be too long winded but hopefully this helps.