Vapor Flask V3 DNA40 Clone thread

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tchavei

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The genuine chip I own kicks out of temp mode and into regular mode quite a lot.
Resistance of the coil in the clone seems to be more stable too, another issue with my genuine chip is that temp protection seems to decrease power to the point where there's not enough heat to generate any sort of vapor.

Temp protection kicks in on the clone chip but the flask is still vapable and the cotton is still not burning.
That's weird.

After realising how a few Evolv beta testers were operating on this forum, I basically dismissed any future product of the company (and I made sure they know that), HOWEVER, as much as I would like to blame the board for your hiccups, the symptoms you refer really sound like connection issues than actually a board flaw.

Sometimes these issues can be hidden on close inspection and only manifest when you're actually firing that resistance.

In any case, at least you have now a working TP mode which gives you time and assurance to fiddle more with the dna 40 and figure out what's going on, if you choose to do so. :)

Regards
Tony

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AnsonJames

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That's weird.

After realising how a few Evolv beta testers were operating on this forum, I basically dismissed any future product of the company (and I made sure they know that), HOWEVER, as much as I would like to blame the board for your hiccups, the symptoms you refer really sound like connection issues than actually a board flaw.

Sometimes these issues can be hidden on close inspection and only manifest when you're actually firing that resistance.

In any case, at least you have now a working TP mode which gives you time and assurance to fiddle more with the dna 40 and figure out what's going on, if you choose to do so. :)

Regards
Tony

Sent from my keyboard through my phone or something like that.

Maybe it has something to do with the Fatdaddy connection I used on the Hana enclosure - the 510 on the clone is fixed so that could be the clincher.

The board worked perfectly for a while though so I'm baffled.

You're right about the Evolv beta testers, I've encountered a couple that defended the DNA 40 to the point where they were almost rabid.
Their defense was so ferocious you would swear you were insulting their mothers as opposed to something designed to keep you off the stinkies.
 
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TheBloke

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People can be weird about products, forming attachments far beyond just liking it. It becomes part of their identity, and criticisms of it are not so much against the product, as against them personally. A good example is watching a group of teenage boys defend their XBox or Playstation against someone who has the opposite.

I was like that when I was 10, in my case with the Atari ST vs the Amiga. My entire bedroom wall was covered in cuttings from magazines explaining all the great things about the Atari ST, and most importantly ones that the Amiga didn't have. The funny thing was that I was completely wrong, the ST was utter crap compared to the Amiga, and I think on some level I recognised that. But the ST was mine, it was in some way part of my identity, like others might have called themselves "bikers" or "skaters", so I was an "Atari ST user." (Yeah mine was a lot less cool, especially in 1990!)

I say this without any suggestion that it's what applies to the situation described, as I have no knowledge of that whatsoever. It's just an observation I've made many times in many situations. That said, I can certainly imagine that that kind of attachment is more likely to occur when a person is something like a beta tester, where they're "on the inside" but not actually the creator (who is usually far more realistic and modest), and where the product is new and exciting but also potentially controversial.

People are weird :) (myself absolutely included.)
 

Croak

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Right behind you...
I design video games for a living. I understand fanbois.

I'm a fiscal and non-big-government conservative in a very liberal industry. I understand fanbois.

I own British and Italian motorcycles in the US. I understand fanbois.

I was a Marine in an Army family. I understand fanbois.

I was an American living in Europe. I understand fanbois.

And the second statement in every one of those lines above is totally untrue. Nobody understands fanbois, even if they're one themselves.
 

cobalt327

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I suspect that Waidea is the one to blame here, not 3FVape. And I'm beginning to wonder if they got hurt with a lot of "defects" recently turning folks initial order into a BOGO.
Yep. I saw this coming. Not saying anyone here would be so crass as to fake a DOA/terminal problem just so they could score a free unit, just sayin'. mwink.gif

Bloke, I feel ya'. Stinks that right when it gets to you, they decide to revise their policy. Sucks but hopefully in the end you'll at least have a working unit. And if it were me, I'd press them for at least return shipping to be supplied by them- that's not asking too much and should have been offered by them all along. IMHO.

ETA I posted this immediately after reading the posts on 190. I see now that this has been fairly well covered since then.
 
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TheotherSteveS

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Maybe it has something to do with the Fatdaddy connection I used on the Hana enclosure - the 510 on the clone is fixed so that could be the clincher.

The board worked perfectly for a while though so I'm baffled.

You're right about the Evolv beta testers, I've encountered a couple that defended the DNA 40 to the point where they were almost rabid.
Their defense was so ferocious you would swear you were insulting their mothers as opposed to something designed to keep you off the stinkies.

or on the payroll...lol.

Only joking before anyone gets bent out of shape :)

Seriously it is, in part, the PC vs Mac, iphone vs Galaxy etc mindset! Strong convictions weakly held for the most part! Im as guilty as anyone.
 

lenon

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Yep. I saw this coming. Not saying anyone here would be so crass as to fake a DOA/terminal problem just so they could score a free unit, just sayin'. View attachment 425652

Bloke, I feel ya'. Stinks that right when it gets to you, they decide to revise their policy. Sucks but hopefully in the end you'll at least have a working unit. And if it were me, I'd press them for at least return shipping to be supplied by them- that's not asking too much and should have been offered by them all along. IMHO.

ETA I posted this immediately after reading the posts on 190. I see now that this has been fairly well covered since then.

I could be completely wrong, but I don't think they've revised their policy. It seems like everyone they've told to keep the faulty flask had a physical/mechanical problem. Bloke, on the other hand, has a chip/wiring problem. It seems to me that their concern is that you've opened it and tried to mod it in some way, and broken it, and now you're trying to return it.

They want to make sure that you haven't. That doesn't make it right, it's just an observation. Again, one I could be completely incorrect about.
 

WeirdWillie

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People are going to be who they're going to be (fact of life)
Me personally I don't give a fat, hairy rats rump who made it, or where it's made as long as it works for me the way that I wan't it to work.

Other people's opinions are just that, and have very little factor on my decisions.

The problem that I do have with brand loyalty fanatics is when they troll and hyjack threads spewing crap, half truths, misinformation, and just blatant lies
in a childish attempt to discredit competive products because of either some vested interest in the a particular brand, personal gain, and/or an attempt to mask or redirect focus of the issues and shortcomings in their on brand/produce that they have some vested interest in.

Much like the media and government do by blasting you with trivial news, and special interest issues to redirect your focus from the real underlying issues that have a major impact on the masses. again usually tied to vested interest and personal gain.
 

cobalt327

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Wow, yeah that's impressive that it's useful at only 6W

Out of interest, why not a portable gas one? I suppose batteries is cheaper in the long run if you use it a lot and keep going through cylinders.
They get too hot, if you go anywhere near a PCB with one of those and you'll kill it. Those gas irons are more for the likes of plumbers soldering pipes.
I'm guessing he's talking about a gas heated metal tipped iron, not a torch w/an open flame. The irons that use a flame to heat a soldering tip aren't ideal, IMO they're better used when mains isn't available. But they can be used to do fairly fine work.

619En2gShOL._SL1500_.jpg
 
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cobalt327

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I could be completely wrong, but I don't think they've revised their policy. It seems like everyone they've told to keep the faulty flask had a physical/mechanical problem. Bloke, on the other hand, has a chip/wiring problem. It seems to me that their concern is that you've opened it and tried to mod it in some way, and broken it, and now you're trying to return it.

They want to make sure that you haven't. That doesn't make it right, it's just an observation. Again, one I could be completely incorrect about.
I see no difference between being faulty because of a "physical/mechanical problem" or a "chip/wiring problem". It doesn't work and that should be the end of it. Also, if they are now requiring the buyer to pay shipping, I think that is contrary to their previous policy. Maybe being reimbursed for shipping makes that "okay", but I don't recall that being part of their published policy regarding returns/defects/etc.

If they're assuming before the fact that he opened it for repair, that's wrong, period. This might be a way to weed out those pretending to have a bad mod from those w/a REAL problem but that's a WAG on my part.
 

HolmanGT

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People are going to be who they're going to be (fact of life)
Me personally I don't give a fat, hairy rats rump who made it, or where it's made as long as it works for me the way that I wan't it to work.

Other people's opinions are just that, and have very little factor on my decisions.

The problem that I do have with brand loyalty fanatics is when they troll and hyjack threads spewing crap, half truths, misinformation, and just blatant lies
in a childish attempt to discredit competive products because of either some vested interest in the a particular brand, personal gain, and/or an attempt to mask or redirect focus of the issues and shortcomings in their on brand/produce that they have some vested interest in.

Much like the media and government do by blasting you with trivial news, and special interest issues to redirect your focus from the real underlying issues that have a major impact on the masses. again usually tied to vested interest and personal gain.

Amen brother Will. :toast:
 

WeirdWillie

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Here is a nice little inexpensive soldering station kit Make: It Soldering Starter Kit | RadioShack

I have had one like this for a couple years, works like a champ for these smaller projects.
I built 6 authentic DNA40 recently using this station with zero issues with the station, glitching screen DNA40 boards are another story.
Don't forget to get some flux while you're at it you're going to need it.
 

tchavei

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Maybe it has something to do with the Fatdaddy connection I used on the Hana enclosure - the 510 on the clone is fixed so that could be the clincher.

The board worked perfectly for a while though so I'm baffled.

You're right about the Evolv beta testers, I've encountered a couple that defended the DNA 40 to the point where they were almost rabid.
Their defense was so ferocious you would swear you were insulting their mothers as opposed to something designed to keep you off the stinkies.
The truth is that I still can be objective about things and as I said, I bet there is a connection issue in your case and it might not be the board.

Check grounding. Especially that screw next to the connector. If in doubt, try soldering the wire directly to the outer threads of the connector. Check wire width. Check battery connection... Heck, check everything.

My dna is working perfectly (second board. First was a dud) but still some resistance was creeping-in after days of use (like going from 0.11 to 0.13) which I couldn't explain. I did every imaginable thing. I even exchange the spring loaded center pin of my 510 connector with a fasttech one (lol) because you can see the bottom of the pin moving under pressure, I changed the ground screw for brass...

In the end (is it really?) my resistance isn't wandering anymore... 4 days at 0.12, changing weather, temperature, left in car and the resistance doesn't move... What was it? I don't know. I changed so many things... But something did change.

I just hope next time I rebuild it will still be fine.

Good luck in your quest. :)

Regards
Tony

Sent from my keyboard through my phone or something like that.
 

cobalt327

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One more thing on soldering. While rosin core solder seems like a good idea, I use solid wire solder exclusively and add flux when it's needed. In my experience the only time flux is needed is at the beginning of the melt. And even if using rosin core, you still will want to use flux when beginning the solder joint.
 

tchavei

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One more thing on soldering. While rosin core solder seems like a good idea, I use solid wire solder exclusively and add flux when it's needed. In my experience the only time flux is needed is at the beginning of the melt. And even if using rosin core, you still will want to use flux when beginning the solder joint.

Yep, Flux always separate. You can use it as starting point to make the solder adhere better.

Regards
Tony

Sent from my keyboard through my phone or something like that.
 

TheBloke

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So then, gather round. Gather close as I tell you a tale of a long journey, a winding path; of hope lost, then redemption gained.

(TLDR? 3F got back in much more detail and with plenty of feeling, but are still sticking to their original requirement, blaming Waidea. And I only very slightly opened the flask, just unscrewing the top cap, but seemingly fixed it all the same. Have been vaping on it for 5 hours now.)

The Little Boy Who Faced The Brutal World (And Lost)

3FVape got back to me in detail, with Kate spilling her heart out about her sad and frustrated they were. They spent three hours talking to the manufacturer, but the manufacturer just wouldn't listen. They said I was using the wrong batteries (not "Power Batteries", they must be "Power Batteries"!). They said it had to be returned.

(What the hell are Power Batteries, you ask? That's what Waidea calls high-amp-discharge batteries. It hasn't been made clear to me whether 20A counts in their eyes. But Kate did say that they said "no more than 2000mah" for some reason. She - or they - seems to think that there's a ratio between the capacity and the max current, she said max amp should be 20 times the capacity, which would actually mean 2000mah would require a 40A battery, and in any case I have never heard of any such ratio being important?)

In her explanations to me she got really rather involved and it comes across as quite sweet. A small snippet:

3FVape said:
We feel indebted as if it were received in person, you angry, we angry; you happy, we happy.

3FVapre is a fresh company which like a little boy who faced brutal world. We cannot growing and studying without you, we fight with many manufacturers day by day, for your reasonable price, good quality products, convenient RMA etc. But we still need time which can let us stand more higher with more power to get more resource for you.

Amen, sister.

So it was nice that she addressed my concerns in detail, and, if they're to be believed, they fought hard. But for all that, the upshot was no different than the original, impersonal email. I must return it at my cost upfront - she did not address the shipping issue at all, just saying "all our RMA standard based on our customer and manufacturer." and "For customer side, we are trying to make any RMAs more convenient.". Well I don't believe it's at all standard asking a customer to pay upfront for untracked shipping.

I did reply again, saying basically the things I'd said earlier in this thread: that they hold the relationship with me; that it's high-risk ordering from China; that I ordered from them only because I understood they had great customer service such that, should problems arise, they would shoulder as much of the responsibility as possible; that the $15 quoted is insufficient to get it back to them at all; that paying up-front for untracked shipping is a huge risk; and so on.

I was calm and understanding and thanked her for all her time and explanations, but ultimately I was still disappointed and unimpressed. I told her straight that I had expected at the very least they would send a new Waidea flask from stock while awaiting return. I told her that even if worst case they lost $40 in sending two flasks, that was as nothing compared to the future orders I alone would likely have placed (true), let alone the orders of others who would hear of my experience and might be put off. I also asked whether her supervisor Monica would read my email as well.

And while I was quite touched with the personal nature of her response, and I do believe that they went to some trouble trying to convince Waidea (confirmed as the main villains of the piece), I am not convinced that they are "a fresh company which like a little boy who faced brutal world." Sure it's tough as a new company. But they list thousands of products. They have three people in their Customer Service team alone, which must make them at least a 6 person company, probably more like 10. They're not a small backroom firm, and being overseas for 99% of their customers, customer service is vital to them.

MyEpack I know for certain is one guy on his own, working what must be 18-20 hour days. He gets absolutely everything delivered next day, with cheap delivery which is free over £50. I've had one failed product, a Fogger v6. One of the posts on the deck broke off. He replaced that deck without my returning mine, but then when I still had further problems I said I just wanted to return it and swap it for a Lemo RTA, which costs £6 more. I said I'd Paypal the difference. He asked me to return the Fogger and the day after he received that, I received the Lemo, with a note saying not to worry about the price difference, sorry for the trouble.

That's good customer service, and you don't have to be a big company - or even have more than one employee - to do it. And I have no worries that it's going to bankrupt MyEpack, it's service like that that ensures he's fulfilling literally hundreds of orders a week. (How many times have I mentioned myepack in this thread already? And for good reason. How many times will I mention 3F favourably now? None; at most "great stock and good prices, but you're taking a risk.")

The Ferrous Thorn In The Flask's Foot (well, head really)

So anyway, then I opened up the flask and have seemingly fixed it.

I'd like to tell you that I took it apart, identified a loose connection and with great resourcefulness rose to the occasion and did my best solder joint ever. But in fact I didn't get anywhere near that. I couldn't open the thing more than a crack. The top lid came off easily enough, but it wouldn't come away more than a few mm because the 510 is on an incredibly short wire. Peering inside I could see the sled, and figured I had to prise it out. But I wasn't completely sure, and didn't want to risk prising the wrong bit or too hard. So I PM'd dwcraig asking for advice and planned to wait.

But while there I looked around in the tiny bit I could see. There's a big brass nut connected to the 510, which is itself wired to the board and then down to the batteries. At first I wondered if that nut untightened, allowing me to at least get the top completely off and have more room to look at getting the rest out. So I tried to reach it with a pair of tweezers. Didn't get anywhere, but as I pulled the tweezers away I could see a little scrap of wire or metal on them. The wire that connects to the nut is not a standard, plastic coated wire, but rather appears to be some kind of multi-strand wire, bare. And this little scrap of wire looked very much like a little piece of that cable.

I carefully fished it out, then gave a general clean to the exposed screen and bits I could see, blew down inside the case to clear any theoretical loose dust, and put it back together.

That was five hours ago and I've vaped on it constantly since then. I've also tried shaking it gently,and tapping it all over in the places where previously that would trigger the on/off behaviour. It's been completely solid.

So I have to assume that that little scrap of wire was there from the beginning (I was at first worried that maybe I broke it away myself when I had the tweezers in there.) It must have been floating around the connection to the 510, occasionally causing a bridge and a short.

That would certainly explain the very first symptom: when I first got it, the VF worked fine for a few minutes up until I put the ST mini on, which I screwed down a bit tighter than I had the others (it was stiffer to get on.) Suddenly the resistance dropped from 0.57 to 0.07, which had it happened while I was building a coil would tell me I had shorted that coil. Well quite possibly my tightening caused a bit of wire to come loose, or move, and shorted it internally. Then that wire must have shifted further such that it was now shorting the connection to the board, not just bridging the 510.

That's my theory, anyway! If it was only bridging the 510 then I'd think that'd be no different to a shorted external coil, and shouldn't have caused the many symptoms I saw.

I still have the worry that I haven't proved it's fixed. Maybe that scrap of wire was actually caused by me, and there was some other problem that coincidentally happened to get resolved while I was opening it up or blowing down in it - like a loose ball of solder that moved further in and is currently secure, but won't stay that way.

But certainly at the moment it gives every appearance of working fine. I'm yet to try TC, but will later.

One thing I've noticed - and I think others reported this on their clones? - is that the resistance on coils is consistently reading 0.01 - 0.03 higher than on my Smok M80. Unfortunately I don't yet have a standalone ohms reader, just the Smok and VF with two decimal place displays (and an iStick 50W with one decimal place, and weird rounding rules, so that's no use.) So I can't say for sure that it's the VF that's wrong not the Smok, except the Smok always seems closer to what I would expect - e.g. reading 0.55 on both an Atlantis and Subtank 0.5 coils (both a few days old), where the VF reads 0.58 - 0.59. I will soon try a brand new coil that should read exactly 0.50.

Another thing is the resistance fluctuates more than in the Smok, e.g. 0.58 will be either 0.59 or 0.58, fluctuating vape-by-vape. This could of course also be a sign of more precision, as one might expect a slight resistance rise from a hotter coil, even in Kanthal.

And I never know whether any particular experience is to be expected from all clones, or a sign of trouble. Like for example it says "New Coil Up" an awful lot, even when I'm putting the same atty back on. And if I take an atty off it immediately zeroes the resistance, but doesn't update the resistance when an atty is put on until until fire is pressed (unlike the live display on my iStick 50W.) That last one I would be pretty sure must be normal behaviour for the clone, not specific to mine.

I always say New Coil given I'm not using TC at the moment. Oh that's another thing, is it meant to ask New Coil even when TC is off? What is the point? But again I could see that being how they implemented the clone; I can't see how that could be a specific problem in mine.

But overall, it is definitely working and seemingly fine. TC is next to try!
 
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Croak

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Right behind you...
Glad to hear you are functional for now, and I think it was indeed just a bit of excess wire that was causing your problem.

The difference between Kangxin and Waidea is that Waidea is an established player and might not worry too much about pleasing everyone, whereas Kangxin is a smaller, newer outfit and is trying to win the hearts and minds of both their customers and their retailers.


Keep in mind that 3FVape was the first retailer to take the risk of carrying the Kangxin V3 Flask, and sales of that device really did put both of them on a lot of people's radars. That made both of them extraordinarily willing to maintain a good reputation on that particular device.

3FVape is indeed a new outfit, and very small in size compared to Fasttech, Focal, Gearbest, etc. Which means they may not have as much clout with their suppliers either when it comes to RMA, and I suspect they have a limited capacity to absorb those losses themselves.

And finally, I do agree that Waidea didn't want to eat the cost of something they knew they could turn around and repair quickly and at almost no cost.

If it hadn't been for the shipping costs and long shipping times, it wouldn't have seemed so unreasonable, it's the same process that you'd have to use with a genuine Vapor Flask return, some vendors would do the leg work for you, others would ask you to send it directly back to Vaporflask (or Vapor Shark, or Hana, or House of Zen, or Asmodus, etc).

But all of them would want the defective device in hand before sending you a new one, or at the very least, your credit card info before they'd cross-ship a replacement. Because customers lie, all the time, and are hardly ever right, in the eyes of most vendors, despite whatever lip service they may state to the contrary.
 
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