Thanks! I was able to order it now.
Good to see the prompt response with positive action. Banggood have proven to be a very good seller.
I received my S1 a few days ago, but I´m pretty indignant about what I got.
1.) Got one broken o-ring (not a real problem).
2.) The emitter is pretty much out of center.
3.) The UI is not working properly. The S1 was delivered switched to group 2, but when I switch to “med” there is “low” again. Another short click brings it to high. There is no way to switch to “med”.
Changing mode to group 1 and memory mode is not possible. Doing 16+ short presses does not lead to “blink blink”.
I do have the BLF Kronos X5/X6 and don´t have any problems changing modes with them.
I contacted the seller, but there is no response yet.
Is this a known issue ? And just in case, what can I do about it ?
Hi JPL, Sorry to read your issues. As you have done please contact Banggood and discuss the issues. I’ve not personally heard of the problems you describe, possibly someone else has who can assist with the query re the UI. I’d also recommend checking the thread on the BLF A6 troubleshooting BLF A6 FET+7135 Light Troubleshooting and Mod thread. It may include a similar experience. I’ll do some checking too, and advise if I find a similar issue and answer.
Hi, I have lurked here for a long time it this is my first post. Having just ruined my dqg 18650 by trying to glue the switch back into place I have ordered the s1. Just wanting to see from other k members if they have been hit by customs charges. I got it for £18 ish. So hoping it may slip through
Welcome to BLF Gst, I hope you enjoy your S1 when it arrives and hopefully you dont incur any customs fees 
You can actually buy it for only slightly more on the EU warehouse right now, and then there should be no risk of issues with customs, and hopefully faster delivery as well. So, if they haven’t shipped it from China yet, you could probably cancel the order from china and get it here instead:
Same base price, but no coupon codes work there.
I also had some issues with mine, and it turns out it had a lighted tailcap switch fitted, this interferes with OTC.
how do i memory to ON? its still OFF:)
Thank you Rolz for checking as well. I did read the BLF A6 troubleshooting thread, but could not find anything matching my problem yet.
I’ve done some searching and not found any mention. Possibly PM Toykeeper for opinion
You need to turn the flashlight on. Then tap/half click the tailcap switch 15+ times. You’ll then enter config mode as per the image below. Once ini config mode you’ll see 2 blinks in one lot and then a second time. After the second lot of 2 blinks turn off the flashlight. On restarting you should have activated memory mode.
Wasn’t it 16+ short clicks/tabs ?
Thanks for pointing this out. Just checked Toykeepers details on the firmware and it’s described as per below. So probably yes to 16 taps. I’ll update the post to suggest 15+
- Short tap rapidly a bunch of times (15+ taps, or until the light stops turning on) to enter soft config mode.
Is there a way to get it to turn on each time to turbo with just one click?
Yes, put it in mode memory = ON mode.
turn it on and put it in TURBO mode.
shut it off
when you turn it back on it should come on in the last memorized mode, which would be TURBO.
TURBO gets hot real quick so be careful.
Take care,
john.
I just recvd mine yesterday after a 37 day wait from banggood.
played with it last nite, really nice flood beam.
I really like that you can go backwards in output modes with a long press of the switch.
I did get the short tube for the other battery type, it was in a separate bubblewrap container,
not in the box with the torch.
for the programming modes I short pressed the switch 16 times
the torch will then blink twice and pause then blink twice again.
after the FIRST SET of 2-blinks shut off the torch to choose between mode
GROUP-1 which is,
moon
low
med1
med2
high1
high2
turbo.
(mine came delivered in mode group 1)
or mode GROUP-2 which is,
low
med
high
turbo.
after the SECOND SET of 2 blinks, shut off the torch to choose between,
MODE MEMORY OFF (mine came delivered in memory off mode)
or
MODE MEMORY ON.
I had to re-enter mode programming(re-do the 16 short presses).
after changing each mode.
Hope this helps someone.
It helped me! Thanks a lot. I have blinded myself sooooo many times trying to change the modes. Got it today and the number of blinds are >20 already.
This thing is bright. On Turbo it so bright and warm that it burns the skin from 5 cm when held for about 10 seconds. Awesome!
Can’t get it working with the short tube though 
it in in flash sale at the moment for 25
Rolz, as you have both A6 and S1 - could you please check if the tubes are interchangeable or the threads are different in both lights? I’ve read conflicting reports but many people were sent 18350 tubes with wrong threads so this may account for the mess.