Nick

No matter what profile or wire material is selected if your temperature setting is set to OFF, the device will fire at the wattage it is set to. The wire material only comes into play with Temperature Protection when a temperature is set. You can set the temperature to off by going one click past 600F so OFF is displayed. From my understanding via a quick google search those coils are not meant for Temperature Protection. As far as vaping wires are concerned there is no difference between 316 and 316L for temperature protection TCR purposes.

The DNA 75 voltage limit is intentional, and is a hardware limitation. The DNA 75 was intended and is marketed as a full featured budget board to allow consumers access to Evolv products at a price point previously unavailable for devices containing our electronics. This becomes more apparent at wholesale pricing. For example, take a DNA 40, or a DNA 60 and at wholesale pricing you are already at or above the the cost of a DNA 75. If you would like a charging board with it, that is again additional cost. The DNA 75 has all of this onboard, and more. In addition, with the right design, you can have a complete mod with two wires using a DNA 75. If you use many of the replaceable coil sub ohm tanks on the market the DNA75 is great. If you like to run higher ohm coils, the DNA 40 or DNA 60 may be the better choice, but again this is a preference thing.

For Lost Vape Products they are now running a US based repair center found here: http://www.lostvaperepaircenter.com/ They should be able to assist!

What battery are you using? On a DNA75 with an 18650 battery that is a perfectly acceptable level for your battery to be at. For example here is the spec sheet for a 25r which lists the end voltage at 2.5v https://www.powerstream.com/p/INR18650-25R-datasheet.pdf

Seriously though, which screws are they specifically? Depending on if there would be some thread sticking out you could drill the head off and then grip it with needle noses to remove it, or vise grips. I would have to know which ones though they are so I can look at the device and figure out a plan of action that may work.

I hear Faygo is great in place of a penetrating oil.

You don't need to, it is done based on the model in the firmware, updating should be all that is needed. Edit: I believe James removed the file he posted as he needs to change it for both variants. It should be up again as soon as possible, stay tuned here.

No problem, thank you for your support!

Not true, they are likely saying that to absolve themselves of any responsibility from their customers tinkering with their own devices. Evolv products are made such that you should not be able to damage your device or cause a failure that was your fault with any of the settings, features or options you are given. This absolutely does not void your warranty from Evolv.

Our technology has never been TC or Temperature Control, it has been Temperature Protection or TP, meaning we are not controlling it per se, but preventing it from going over the set temperature. Our policy has always been to give the most accurate information possible, if the temperature is not being limited because it could potentially go over the setting, we don't display the message. This has always been how it was coded and intended to my knowledge, the only difference now is the control system is so precise and fast that we are not at risk of going over the set temperature. I do understand your point of view however and will bring it up internally.

I actually noticed this on the first one we made as soon as I hooked it up and vaped it for initial testing. I investigated this with James a bit, and the reason is not because it isn't working, it is because it is actually working so well now that it doesn't hit the threshold required to trigger the message in many cases. This was a very satisfying revelation on our end for what we originally thought could have been a bug. We hope you guys are as satisfied as we are with the results of our work on this.

We just located a VS200 here that is displaying this behavior and are working as quickly as possible to resolve it. We appreciate everyone's patience and assistance!

30 amps minimum if you want the full performance. I'd over spec it a bit to account for sag under load from the PSU and loss due to the wiring.

As soon as our development team feels it is ready for the public which should be soon.

Anything a 200 fits in, a 250 will fit in.

Evolv is once again proud to announce our new DNA 250 board. The boards are available now in extremely limited quantities. Because of component lead times customers will be limited to 1 board per device that they plan to release plus one board as a spare. We expect this to improve as component lead times improve. The DNA 250 is the same size as the DNA 200, uses 3 cell series voltage input, utilizing the same mounting and layout for the buttons, screen, and USB with the addition of a few exciting features. -250 Watts max -55 Amp current output limit -2 Amp charging via Micro USB -Onboard reverse voltage protection -Higher current fuse -Smoother control system for Stainless Steel wire with Temperature Protection (This is a firmware update and is also available for the 200, giving it a similar control structure to the DNA 75) Spec sheets and models will be available some time next week. Individual retail quantity pricing is as follows: $80.00

Evolv is once again proud to announce our new DNA 250 board. The boards are available now in extremely limited quantities. Because of component lead times customers will be limited to 1 board per device that they plan to release plus one board as a spare. We expect this to improve as component lead times improve. The DNA 250 is the same size as the DNA 200, uses 3 cell series voltage input, utilizing the same mounting and layout for the buttons, screen, and USB with the addition of a few exciting features. -250 Watts max -55 Amp current output limit -2 Amp charging via Micro USB -Onboard reverse voltage protection -Higher current fuse -Smoother control system for Stainless Steel wire with Temperature Protection (This is a firmware update and is also available for the 200, giving it a similar control structure to the DNA 75) Spec sheets and models will be available some time next week. Individual retail quantity pricing is as follows: $80.00

Looking at the board straight on fire button up top, USB on bottom your pins are as follows. M R B G Peak Forward Current (1/10 Duty Cycle 0.1ms Pulse Width) B: 100mA G: 100mA R: 80mA DC forward current, 20 20 30 mA respectively. BG are 2.8v-3.9v and R is 1.80v-2.40v

There also should have been the offer to send it in to get fixed. Did you get your issue resolved?

I would guess that your build is just a bit too low and you are hitting one of the output limits after you put the mod down, it cools completely, and the resistance of the coil drops. Once its warm and you reset the mod it re-reads it as a higher resistance. Check the DNA200 spec sheet below (Pg. 4) for the "DNA 200 Kanthal Power" graph. Based on what Device Monitor is saying the resistance of your coil is it looks like it would drop you down to the wattage you are seeing. http://evolvapor.com/datasheet/dna200.pdf

Most sleds are inherently pretty poor sadly just based on how they work and the contact force. I got a DNA75 mod the other day with a very good battery tube and I can say the performance is a good deal better thanks to the stronger contact.

The best advice I can offer is to move the board into the handheld unit. Measure the voltage drop over the length of the power wire and adjust the wire gauge to be adequate. I did it this way and would honestly not recommend having the 510 wires that long if you're going for output accuracy, but hey, if it works awesome!

Looks good! My DNA200 ammo can is still kicking around the office here somewhere and gets dragged to shows once in awhile.

Tin a tiny bit of wire and bridge Battery - to G and then Battery + to 3. Clip extra wire flush. Battery + and - to their respective pads. Small black balance wire to 1 and small red balance wire to 2.

A TCR curve is just that, a curve. The board performs the calculation based on resistance, and displays the temperature. For your device to display that high of a temperature something triggered a massive resistance spike while firing.