Maybe you can find some information on the evolv forum?
https://evolvapor.forumchitchat.com/post/resistance-still-climbs-while-its-supposed-to-be-locked-7760270?highlight=resistance+still+climbs+while
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Thanks for your input! I’m having this issue with a range each tank or dripper I tried. 
The guy in that thread is locking ohms in power mode as far as I could gather. But I’ll look around that forum again when I have time! I find it a bit messy and unresponsive - compared to our beloved home, of course 
My problem is that the chip doesn’t do what it’s supposed to (according to the manual) - consistently use the cold resistance I locked it to.
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Have you updated to the latest firmware service pack?
I think you have an intermittent connection somewhere. It could be a bad 510 connector or you may need to adjust your center post to stick out a bit more on this mod.
Locking the ohms is not recommended and it is meant as a band-aid for fiddly attys. It says this in the manual somewhere. I have, um, a large number of DNA200s and the only time I’ve had them do the new coil thing it was a particular mod/atty combo shorting or opening, again for me it’s always been this type of problem. YMMV, please let us know if you figure it out, but I bet the DNA is sensing the intermittent contact and unlocking the resistance when it does. I cannot duplicate your problem though under that scenario.
As a diagnostic, I think you should run in device monitor mode and watch the resistance. Signs or intermittent contact should show up if live ohms jumps around and doesn’t vary smoothly. Again, you should not need to lock ohms if you have a stable build. Are you using contact coils?
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Naseschwarz said that he is using spaced coils.
That would have more than likely been to cure for the tank I was referring to above but it’s pin was not adjustable so I can not say that for sure.
I also agree that from everything he has wrote the issue is with a intermittent contact problem someplace.
I wonder if he has tried any atty of his that works properly to verify it is not a mod issue.
I highly doubt that any one person could end up with 2 faulty DNA devices doing the same thing but anything is possible. .
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TY, I didn’t see that. I’d definitely be looking at that center post then.
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@Naseschwarz
I am sorry , I was in a hurry when I posted that.Yes , he was in power mode.I did a quick search and did not find anything that really helped in your situation but I though you could ask your question there.The forum is ran by the makers of the Evolv DNA boards.
I figure if anyone would know it should be them.
Again sorry for the confusion.
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Hay I have been away for awhile in reading this I have used 2 two RTA That are stable on my DNA devices Griffin and the Borase I do not even lock the ohms all the others for me I have tried .it seams to show up worst on RTA that are universal occ atomizer we’re you can screw a build deck in to the RTA I do not care what I do if the RTA has a floating center pin drive me up the walls and yes they seam to work on other mods just fine on sx boards but I can only get what I am looking for with titanium just a thought .hopefully this will shed some light I know for a while there has been mentioned above I tried a lot of different wires and everything I didn’t know what the hell’s going on
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This surprises me… They are all I use on my Vt133s. I’ve had problems with other tanks, but none with Boreas.
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Ops i meant the boreas is my go to great rta no problems
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It’s actually my fault. I misread your post. Like you I’ve never needed lock the resistance on the Boreas. It runs flawlessly for a good while with Ti builds.
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@Naseschwarz after reading the thread I have to ask…the profiles you’re using in your mod…where did they come from?
The only thing I can think of is the TCR profiles for the various metals. If those are off then it reasons you’ll have poor performance.
Of the 6 DNAs I own, none fail to work flawlessly with TC using any wire for which I’ve imported a profile. If I’m not mistaken, the newest Escribe has profiles already packaged with them, including Kanthal (not a TC profile) and those work well too.
I would suggest taking it to a vape shop for a once over, but I find most of the vape shops around here anyway don’t know squat about TC or DNAs.
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How’s it going that a big plus with the DNA device
If you find someone using same mod in TC problem free you can request that they send you their setup by email I use opus DNA 200 and 250 sp2 5 once loaded on to another opus DNA 200 or set up for 250 it work exactly the same as mine does. It is a clone of my mod Just back up your original set up first and obviously make sure the batteries are the same milliamp. No need to have someone do it for you
Yup, just did that before posting this thread. I was hoping that’d fix it.
Good idea. But… three mods with the same faulty construction? I hope that’s not it, if it was I’d be quite disappointed with ThinkVape, LostVape and HCigar…
That’s what I did first (and always do after a new build, getting a bit paranoid). The resistance seems to rise smoothly in any case. I used to have massive temperature jumping but using thicker wire fixed that.
I tried ca. 10 atties, give or take. All the same issue. Imagine how much wire I wasted on this 
As a precaution, I only use atties with solid center pins and as few as possible screwed parts. Those can mess up your signal stability.
That’d be really nice! I’m using a HCigar VT75, Therion BF and a Panzer DNA200. Any takers?
No worries! I’ll post over at their forum soon.
Another good lead! My material profiles come from various sources.
The profiles in my Panzer are from sources I forgot… it’s been a while… However, I tried the “standard” ones and my downloaded ones with the same results. Oh wait, I think I got them from steam-engine.
My Therion uses the profiles that came pre-loaded in it. They’re pretty recent, I suppose.
My VT75 uses the same profiles as my Panzer, I think.
OK, maybe I should reload/switch my profile to narrow it down!
To-do list for myself:
1) switch material profiles
2) monitor for irregular resistance rise
3) post at evolv-forum…
Cheers! Your help is much appreciated! 
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I can send you my vt75 settings to try
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Excellent! Many thanks!
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http://www.djlsbvapes.com/dna200/
Halfway down the page is setting for the panzer.
also dont forget to backup current settings 
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By chance have you noticed this happening more when the temps are low as in working outside?
I remember having a bad time with Titanium a couple of years ago during winter.I was having to do some work in a warehouse that would barely get above 40 degrees Fahrenheit / 4 degrees Celsius.
The cold temps would play havac on T/C when I would change my ambient temperature.
Other than the mentioned wire profiles I haven’t any clue.Hope you get it figure out!
I got my setting through Escribe itself, online downloading button. Tested and tuned the battery myself. Running my old settings at the moment, trying to reproduce the problem. Panzer said 0.06 ohms. Installed the atty on my VT75, read 0.073. We’ll see.