DNA40 vs SX350j

Status
Not open for further replies.

retird

Vaping Master
ECF Veteran
Verified Member
Dec 31, 2010
5,133
5,862
North Side
If it is sometimes good and sometimes weak it may be a connectivity or a wicking thing... none of the 8 or so dna's I use has that ... all are consistent... only time I can get a weak vape I clean the 510 and/or fix the wicking.... only two of my devices are Hana's... one a beta unit and the other a V4.... the rest are self built....
 

RebelGolfer72

Moved On
ECF Veteran
Apr 28, 2010
1,604
3,451
Pittsburgh, PA
Not quite all. It's a very very simplistic conceptual discussion and in the end there's a reason why it took 5 years before it actually made it into a product -- it's not anywhere near that easy.

Anyone notice the mention of self-calibration? :)

I disagree slightly. I wouldn't say it was as much "hard to implement" as I would say that "the processing power required to implement in a device small enough was not cheap enough yet to implement at a price point that would allow the final product to be affordable for enough consumers to purchase in order for a company to recover development costs and actually make a profit".

Yeah and it could be a coincidence that the industry suddenly widely released TC independently exactly one cloning/reverse engineering cycle after Evolv released it.

And made it look and work just like the Evolv product, in many cases, or marketed it just like the Evolv product. Coincidentally.

Standard thing in a free market system that "new products" are what generate the most revenue. Hard to sell a new product that doesn't at least have the same features as the product they are competing against.

Other than the use of a pure, single element (consistent from sample of wire to another vs an alloy that is wildly different in composition between samples) heating coil material that can provide a predictable ΔR to ΔT curve, and using resistance to calculate the ΔT, the similarities end there. Using resistance to measure temperature is nothing new. This is how. Thermocouples used with multimeters and even home thermostats use this concept, and have for years. The different devices useradically different ways to manage the temp regulation.

You know it's a common belief that Thomas Edison invented the electric light. Fact is other inventors had previously demonstrated illumination of a filament with electricity almost 80 years prior to him. He just made it more economical / practical and history has credited the invention to him.

There are many cases of Edison stealing others ideas, and using shady practices all along...don't get me started on Edison lol

I have yet to see a TC-enabled mod that works anything like Evolv's approach. Just looking at the Oscope captures on pbusardo's videos, one can see they are all quite different in how they approach temperature control.

I agree. Evolv likes to modulate the amount of power to change temp while YiHi likes to vary pulses to help regulate it (a concept that is used quite frequently in resistance brazing/soldering/welding processes-- and has for years. Each method has its merits and drawbacks.but both methods do work.

No, that shows they are different in how they approach power regulation. Same as it has always been.

Earlier you said they did things exactly the same way as Evolv. So which statement do you stand by?

For Comparison... yet another reviewer....



Reviewer or used car salesman. His reviews are more infomercial than unbiased review

Retird does enjoy this. This is typical behavior from him. He keeps a careful log of every complaint he can find and saves it for a big reveal later that he can post to prove a mod should not be trusted and has far more problems than any product should have. Of course, he doesn't do this with Evolv products. But that's probably because the amount of posted problems would exceed the maximum post size so it can't really be done. But that does speak to a lack of consistency on his part.

But that's just the way Retird is, so since he gets enjoyment from this just let him have his fun in his twilight years.

Evolve doesn't have that many problems, just one or two that they just haven't been able to correct yet.

To save the reader any unnecessary drudging through other threads here is the problem and solution to firmware ver 2.1 "at least until firmware patch is released."

Problem:
Check Battery error after inserting a new battery when in Eco mode
Solution: Do not remove / replace battery when in Eco mode, Switch to any other mode prior to battery removal.

In the IT world (as with other areas as well), issues that have a reasonable workaround like this, and that do not cause any significant impact on time to work around are RARELY show-stoppers, so in addition to finding the fix, it's common practice to go through a rigorous regression testing process - to insure nothing else was broken trying to fix the initial problem. In other words they would rather take the time to do it right under moderate pressure from a few users who are mildly annoyed than to resolve under a LOT of pressure from a LOt of users who are quite angry.

I'd say your out to lunch. To request a update with major functional changes to be pulled due to a nuisance bug is absurd. On the other hand if there were a safety issue or critical problems then of course it should be pulled. I think I've used the words "over exaggeration" before and yes they apply again here.

I agree, the bugs introduced are no more than a minor nuisance, that I would bet a majority of users would never experience. I bet if you asked ALL SX mini users how they charge their batteries, you would find that outside of the small sampling of users you see on here, almost all users are utilizing the USB port for charging so would never experience the issue-- if they even upgraded at all!

Yup. if your not willing to suffer any unforeseen problems it's a good idea to wait on any patches. Back in the 90's we adopted a methodology that any new code, Including Microsoft, Oracle, Antivirus or anything that would change a system would go through the exact same rigors as our in house developed code. First through the development servers, then test servers, then staging servers and then finally to the production servers if no problems were found. It would typically take about a week to make it through the change control process and make it through to production. And yea we still came across problems occasionally that weren't detected in the test & verification process.:facepalm: This update is not a mandate, it's optional and people can use their device just fine without it.

I would venture to say this is how IT in many large companies operates. I know my company is like that. We are not known as an IT company, but are the leader in areas of electrical, automotive, truck, aerospace and hydraulics. With that said, we only made the move within the last 2 years or so toward migrating all users from Windows XP into Windows 7.

I have a buddy that has a DNA 40 that is persistently getting a scrambled screen. It goes away but randomly reappears and is bothersome to him. Can you tell me what firmware version he's running? Or how he can check his firmware version? Are there any firmware updates he could get to fix his problem. He's stated he's contacted his vendor and they tell him it's the latest version. He's contacted the DNA 40 board manufacturer and they won't help him and redirect him back to the vendor. Should I contact the Manufacturer on his behalf?

In many sectors, the heavily discounted pricing that the OEM of the final product get on components comes with the expectation that the producer of the final product takes on the burden of managing the support of the component when used in their product...so that explains why Evolv is sending folks back to the maker of the mod. Unfortunately, not all mod makers have been the best at handling the issues.

You do not need to know any of those things. No there are no firmware updates that will fix the problem. The fix is hardware and every version of the board has the same fix.

Yet, there has been at least one big board change since the DNA40 was released (when they added the header to allow different screens), yet, they still didn't fix the big problem causing the garbled screens?

Have you contacted Evolv and Vapor Shark? If ya want just PM me with your buddy's phone number and I'll call him and get the info and try to help him...

Good luck dealing with VaporShark. They have been less than helpful with any concerns.

So you want to chastise the beta testers again without any idea of the process... fine.... you are also chastising Pbusardo also and all the other beta testers.... that has nothing to do with me wanting to help your buddy....

FYI I have already communicated your buddy's situation (early this morning) ( with the info you stated) and will let ya know the results....

Many of us who purchased feel like we were beta testers with the whole DNA40 fiasco
I'm not some YiHi fanboy and Evolv basher. I own 3 DNA40 devices, and 2 SX devices. Both have their merits and disadvantages. It's like comparing my full size pickup to the wife's more compact car. Both get me from point a to point b, but if I know parking is going to be tight, I'd rather take her compact car vs my truck. If I want room to sit comfortably for a longer period of time, want a little more power for managing traffic, want better visibility and want to be more comfortable, I take my truck. If I want a more compact, simplified Vape device, I grab my VaporShark. If I want a little more control over my vaping experience, a little more flexibility and the convenience of quickly swappable batteries, I grab my SX mini or Ipv mini. With that being said, there is no denying that Evolv may have made a few bad choices in how they handled the DNA40 issues...but they need to start making it right, or they will soon go the way of Blackberry.
 

RebelGolfer72

Moved On
ECF Veteran
Apr 28, 2010
1,604
3,451
Pittsburgh, PA
And what bad choices do you feel Evolv made? And what do they need to do to start making it right? I could easily say the same for many devices... as it is only opinion... but I'm interested in your opinion...
Hold their big customers (VaporShark et al.) accountable for support. When a end user comes to them because VS or other mfr refuses to help them, they should help that customer, then charge it back to VS. if you look at labor/support costs, it's significantly more expensive to the company than what they pay in salary (a tech that gets paid $15/hr costs the company more like $75-100/hr). The time these companies (VS and Evolv) wasted by telling me to pound salt when I've come to them for assistance they could have helped me for a lot cheaper.
The boards an be reprogrammed while in a mod (as long as ther is access to the board and or components).. They could have easily made up a couple of programming jigs for their bigger customers and empowered them to perform firmware updates.
Better communication is always helpful as well.
Obviously they also needed more extensive testing before release.

No need to be so defensive for Evolv, they are big boys and can defend themselves. I'm not in any way saying Evolv is a bad company or makes bad products. I believe all that transpired with the DNA40 blew up to be even bigger than they could have anticipated. I also believe the actions they took, were with the best of intentions. As an adult, I'm faced with "situations" every day--- situations at work, in my marriage, and as a parent. Do I always make the right choices in how to handle them? No. I believe I am always trying to make the best choices and taking the best actions, but I make mistakes, and fall flat on my face. Constructive feedback and helpful suggestions better equip me to handle the next situation that comes along. Fanboys defending Evolv's actions and trying to "shield them" from customer feedback by essentially telling folks who have experienced a bad product and poor customer service that it's just "user error", or trying to discredit the claimant is actually HURTING more than helping.
I have seen in some posts that you have more than once offered to help by reaching out to Evolv/VS, advocating for the consumer-- which I believe is a generous offer to truly help.

There are other people, however that have such a superiority complex...An arrogance that they know it all, to,the point of contradicting themselves in posts, telling blatant lies, and having a tone of complete douchebaggery towards others that is the most harmful.
 

retird

Vaping Master
ECF Veteran
Verified Member
Dec 31, 2010
5,133
5,862
North Side
THX for your thoughts..... it would be nice if we could live in a perfect world I think.... back in my gainfully employed days I would always ask those that came to me with a problem to always offer me their thoughts on a solution...made my job alot easier.... many had a good solution and those that just came with complaints just were complaining for the sake of complaining...

have a great day....
 

Mroutlaw

Ultra Member
ECF Veteran
Verified Member
May 13, 2012
2,556
2,033
Deerfield Beach, Florida
www.
If it is sometimes good and sometimes weak it may be a connectivity or a wicking thing... none of the 8 or so dna's I use has that ... all are consistent... only time I can get a weak vape I clean the 510 and/or fix the wicking.... only two of my devices are Hana's... one a beta unit and the other a V4.... the rest are self built....

It's not user error. As I said, same coil on the IPv4, sxmini m class and heatvape invader work awesome. This comes down to the refinement issue with the dna
 
  • Like
Reactions: RebelGolfer72

retird

Vaping Master
ECF Veteran
Verified Member
Dec 31, 2010
5,133
5,862
North Side
refinement works just fine and you have the atty lock feature also.... finally realized I'm just wasting time with all this banter.... gone on way too long...... I'm just going back to helping those I can with Evolv technology....and still going to research new technology and compare.....and give my opinion....

Have a great weekend....
 

Vooper

Senior Member
Apr 16, 2015
139
121
And what bad choices do you feel Evolv made? And what do they need to do to start making it right? I could easily say the same for many devices... as it is only opinion... but I'm interested in your opinion...

Actually fixing their issues like the screen glitching rather than just adding a feature to hide them would be a good start.

And maybe offering a service to upgrade all the affected chips would be kinda nice too.
 

Mroutlaw

Ultra Member
ECF Veteran
Verified Member
May 13, 2012
2,556
2,033
Deerfield Beach, Florida
www.
Many of us who purchased feel like we were beta testers with the whole DNA40 fiasco
I'm not some YiHi fanboy and Evolv basher. I own 3 DNA40 devices, and 2 SX devices. Both have their merits and disadvantages. It's like comparing my full size pickup to the wife's more compact car. Both get me from point a to point b, but if I know parking is going to be tight, I'd rather take her compact car vs my truck. If I want room to sit comfortably for a longer period of time, want a little more power for managing traffic, want better visibility and want to be more comfortable, I take my truck. If I want a more compact, simplified Vape device, I grab my VaporShark. If I want a little more control over my vaping experience, a little more flexibility and the convenience of quickly swappable batteries, I grab my SX mini or Ipv mini. With that being said, there is no denying that Evolv may have made a few bad choices in how they handled the DNA40 issues...but they need to start making it right, or they will soon go the way of Blackberry.
I agree completely. I feel the same way. I have 2 dna40 devices and2 sxmini m class plus the invader mini. each have their purpose, but in the end, my Dna devices have more problems and are not my go to device at home, especially for dripping



Sent from my iPad using Tapatalk
 

herb

Vaping Master
ECF Veteran
Mar 21, 2014
4,850
6,723
Northern NJ native , Coastal NC now.
It will be interesting to see how this thread pans out! Good idea though. This has plagued two or three other device-specific (supposedly) threads.

I like both btw....;)


I think it will turn out like most other threads like this but i am usually wrong, more confident than normal on this one though.
 

chia

Super Member
ECF Veteran
Verified Member
Nov 7, 2014
892
494
Red Dot
I have a Hana v4d and a rdna40 with newest board that has atty lock. Neither are nearly as consistent as other devices. If I take an atty with a dual coil 30g ni200 wrap at .11 ohms and put it on my invader mini (a $55 TL device). I get the same exact vape every single time. Put that same atty on either dna40 board sometimes it's a nice vape and sometimes it's weak. I will also say I had to exchange my rdna40 4 times to get to my present board. I had screen glitch issues 2 times, then, after they supposedly changed the board, got the unit back with a battery at 1.5v. The unit had a short in it that depleted battery just sitting. Then I asked for the new board since there's been so many problems

I mentioned the same problem too, after I watched Busardo's' vid on the Dna40 and realized I have the same issue(didn't know what it was then) .. But good luck trying to get answers.. As long as it is not a widely encountered or reported issue, the only answer you will get is 'user error' .. If you get answers at all ;(
 
  • Like
Reactions: RebelGolfer72

TheBloke

Ultra Member
Verified Member
Mar 30, 2015
2,800
3,549
46
Brighton, UK
Actually fixing their issues like the screen glitching rather than just adding a feature to hide them would be a good start.

And maybe offering a service to upgrade all the affected chips would be kinda nice too.

I've only just started reading this thread so apologies if this is covered (perhaps in great detail) earlier - I will go back and start reading.

But it absolutely baffles me that the DNA 40 devices are still plagued with these issues after so many months, given how many cheap-as-chips clones there are that have never had the issue. Of course they had the benefit of copying an original, but that original had issues and none of the clones did.

Evolv has now had months and months of development and testing time. If the components they have in place are fundamentally unstable, it is surely long past the time when they should have done a major change.

Maybe someone should send them a clone board so they can learn how to do it :)
 

Frenchfry1942

Vaping Master
ECF Veteran
Verified Member
Jan 12, 2014
7,459
14,397
Took the time to catch up by reading for a good while. I am not one to lead the way in pre-ordering/buying new products and I am glad. Following different boards, it seems good that I am better off to not get the DNA40 just yet. The business is very competitive and the two main board-makers are pushing the latest and greatest out to get the buyers before the other. In the process, the quality is dropping.

A friend has an issue and we will work on it ourselves.
 

TKS

Super Member
ECF Veteran
Verified Member
Apr 28, 2015
378
280
36
Meh the temp control on my Flask is worthless. The ohms fall no matter what way I got the board it's initial reading (I noticed the ohms dip especially overnight when the device and Atty cool off fully. And I still can't get this thing to work consistently. The weak hits when this happens are just ridiculous. Goodness do I wish for a non DNA40 Flask.

It seems I won't have a choice but to search and splurge on a parallel TC device that doesn't house a DNA40. Sadly the ones that remotely look comfy in hand are all these annoying C-Frame high end mods.. The rest just have too many downfalls for me to bare.

Oh and I have a chip with the C/F update and honestly never once had a screen glitch at all. people say they released an arty lock or some ridiculous implementation that isn't a fix but a poor workaround. Why can't this thing refresh and read based upon lowest resistance recorded is beyond comprehension. Maybe it's simply the limitation of the science and reality, or maybe we need a whole new approach. Either way, unless the DNA50 or whatever they call it is flawless as can be based on someone like pbusardo or anyone with proper tools can validate impartially. I am done with Evolv and could care less if they sink just like blackberry did.
 

dr g

Moved On
ECF Veteran
Mar 12, 2012
3,554
2,406
Paradise
I've only just started reading this thread so apologies if this is covered (perhaps in great detail) earlier - I will go back and start reading.

But it absolutely baffles me that the DNA 40 devices are still plagued with these issues after so many months, given how many cheap-as-chips clones there are that have never had the issue. Of course they had the benefit of copying an original, but that original had issues and none of the clones did.

Evolv has now had months and months of development and testing time. If the components they have in place are fundamentally unstable, it is surely long past the time when they should have done a major change.

Maybe someone should send them a clone board so they can learn how to do it :)

I'm sure people will laugh it off, but the reason this is so as far as I have seen is that the Evolv boards are doing a lot more than clone boards. Because Evolv boards push so much more data to the screen, they are running the screens closer to the limits where manufacturing tolerances in the screens can cause issues. This is also related to their design, they are cramming a lot of stuff onto the same sized pcb as the DNA20, so isolating signal paths isn't as easy.

Meh the temp control on my Flask is worthless. The ohms fall no matter what way I got the board it's initial reading (I noticed the ohms dip especially overnight when the device and Atty cool off fully. And I still can't get this thing to work consistently. The weak hits when this happens are just ridiculous. Goodness do I wish for a non DNA40 Flask.

It seems I won't have a choice but to search and splurge on a parallel TC device that doesn't house a DNA40. Sadly the ones that remotely look comfy in hand are all these annoying C-Frame high end mods.. The rest just have too many downfalls for me to bare.

You have the same choice you have always had. Learn to use TP or cry and whine about it. Refinement happens for a reason, learn why and set accordingly.
 

TheBloke

Ultra Member
Verified Member
Mar 30, 2015
2,800
3,549
46
Brighton, UK
I'm sure people will laugh it off, but the reason this is so as far as I have seen is that the Evolv boards are doing a lot more than clone boards. Because Evolv boards push so much more data to the screen, they are running the screens closer to the limits where manufacturing tolerances in the screens can cause issues. This is also related to their design, they are cramming a lot of stuff onto the same sized pcb as the DNA20, so isolating signal paths isn't as easy.

Can you elaborate? In what way are they pushing more data - faster refresh rate? Do you have numbers on the frequency of screen updates - preferably with a source?

(PS. I'm not looking to argue, I really want to know)
 
  • Like
Reactions: Quantum Mech
Status
Not open for further replies.

Users who are viewing this thread