Convoy S2+ new firmware (biscotti) memory mode jammed

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koolranch
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Thank you for this diagram, it helped me..

Yokiamy wrote:
Did you follow the UI?

!{width:99%}http://www.mtnelectronics.com/image/cache/data/Drivers/biscotti-instruct...!

ridepacker
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Joined: 03/31/2019 - 08:40
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hello, im new here.

just receiving my 2 convoy S2+ ordered in mid April ( one with SST20 & one with Nichia) and unfortunately i got the same problem (all of them). i cannot turn off the memory mode. this is annoying.

i already try to contact simon the seller, and i still wait for his reply.

Plotthound
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Location: New Hampshire USA

ridepacker wrote:
hello, im new here.

just receiving my 2 convoy S2+ ordered in mid April ( one with SST20 & one with Nichia) and unfortunately i got the same problem (all of them). i cannot turn off the memory mode. this is annoying.

i already try to contact simon the seller, and i still wait for his reply.

I presume they have Biscotti drivers? (My SST20 doesn’t) I have some that do. It’s kind of crazy you can buy one on Bangood with no Biscotti chart or explination and it doesn’t come with an owners manual either. . https://www.banggood.com/Gray-Convoy-S2-SST20-LED-Flashlight-18650-Flashlight-Camping-Light-Hunting-Emergency-Lantern-p-1420655.html?rmmds=search&ID=566429&cur_warehouse=CN I thought I had trouble with memory mode once, but it was operator error. I was clicking after the second “buzz” instead of during it.

ridepacker
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Joined: 03/31/2019 - 08:40
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Plotthound wrote:
ridepacker wrote:
hello, im new here.

just receiving my 2 convoy S2+ ordered in mid April ( one with SST20 & one with Nichia) and unfortunately i got the same problem (all of them). i cannot turn off the memory mode. this is annoying.

i already try to contact simon the seller, and i still wait for his reply.

I presume they have Biscotti drivers? (My SST20 doesn’t) I have some that do. It’s kind of crazy you can buy one on Bangood with no Biscotti chart or explination and it doesn’t come with an owners manual either. . https://www.banggood.com/Gray-Convoy-S2-SST20-LED-Flashlight-18650-Flashlight-Camping-Light-Hunting-Emergency-Lantern-p-1420655.html?rmmds=search&ID=566429&cur_warehouse=CN I thought I had trouble with memory mode once, but it was operator error. I was clicking after the second “buzz” instead of during it.

Yes biscotti drivers, I also got it with no manual, just following the item description on aliexpress shop.

I already try combination on the buzz, or after the buzz, still not working.

Also on the bike flasher I get 2 pulse per second, from what I read in this thread, it sign that I get first batch driver.

Rusty
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Location: UK

I bought 3 of these SST20 S2+ with biscotti, just because they were so good VFM; I have only powered one up so far and on a slightly different note to this thread and in the absence of finding the information anywhere else – I went into programming mode to change the mode spacing, which worked without error. Unfortunately I programmed the wrong mode in error, so went back into programming mode and changed the mode again; fortunately I got it right this time as I can no longer get into programming mode to change anything – is this a common failure mode and is there anything that can be done to fix it, or is it a good excuse to try and learn processes for reflashing I if one of my batch has failed this way, are my other 2 likely to go the same way?

I’m not concerned about the apparent failure, as it’s failed stuck in a mode I want and they were dirt cheap anyway and I can use them as triple hosts, I was just curious if it’s recoverable or if I’d need to reflash the MCU/replace driver to restore full functionality.

belial
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Joined: 01/03/2017 - 20:50
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Location: Hellas

hello everyone, even though i have boungt the new convoy c8 plus, my old convoy c8 clear suffers from the problem of not be able to change mode. i use the 10 times tap but the only thing that happens is that sometimes it changes the power of the light 100% or something like 30%. Is there somethong i can do to fix this beautiful thrower? i don’t hve acces to programming tools and stuff. Thank you in advance.

varbos
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Joined: 02/16/2017 - 07:36
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Location: Europe

belial wrote:
hello everyone, even though i have boungt the new convoy c8 plus, my old convoy c8 clear suffers from the problem of not be able to change mode. i use the 10 times tap but the only thing that happens is that sometimes it changes the power of the light 100% or something like 30%. Is there somethong i can do to fix this beautiful thrower? i don’t hve acces to programming tools and stuff. Thank you in advance.

I don’t think there is any solution other than
- try reflash the firmware (requires programming tools)
- replace the driver (requires new driver, soldering iron)

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