dwcraig1

You didn't mention what the wire material is, if TC wire resistance when heated is going to be higher yet. I'd guess that you are hitting the maximum voltage output of the board.

This is a 166 but I would think it would be very similar. https://www.youtube.com/watch?v=srfY6uQxSw0

Any chance that the 510's positive wire is making contact with the battery sled's positive contact? Does the Profile Unity have a slightly longer 510?

Have you charged your battery since taking this screen, it's pretty low? For round cells I set my Soft Cell Cutoff at 2.75 volts. Does it work OK when in wattage mode?

With a live screen hoover your mouse on the batteries voltage drop and post what voltage it reads. Also post what your Cell Soft Cutoff is set to. Edit: I'm thinking that your voltage drop might be lower than your Cell Soft Cutoff.

It's pulling 24 amps from the board not the batteries. Example: the pack @ 11.1 volts w/30 amps powers the board to put out 55 amps @ 4 volts (just a rough example, not exact figures)

Turnigy NE-BA931 will fit it just fine, this battery is rated at 750 mAh. That happens to all of them eventually. https://hobbyking.com/en_us/turnigy-nano-tech-750mah-1s-35-70c-lipo-pack-fits-nine-eagles-solo-pro-180.html

Which board? If a DNA60 it's not there.

Looks good to me. Did you use the same wire as the one with the problem?

On my laptop the USB ports are all USB 3.0 except one, it is 2.0. Do you by chance have one that is 2.0? I'm thinking that your problem is hardware more than software, don't know though. I'm not sure if this was mentioned or not, using another computer with same data cable will the mod of perhaps a phone connect? I would be first checking the cable even if it had worked before.

Try the material file. There is no change, are you sure it's stainless steel? That is how Kanthal or Nichrome would look. Try the .csv that I'm including and post results again. DNA200-SS_316L _Elite-SteamEngine.csv

Here I am using Device Monitor in EScribe. The cold ohms and live ohms are what I'm most interested in seeing. Note there is a change in resistance from cold to hot around 18% or so. If you are getting a similar change in resistance and still jumping from TC to wattage then there could be a couple reasons. 1. TCR value in not correct for the wire material. 2. Bad connection between the board and coil. Post a screen shot like mine, this was done with Windows Snipping Tool.

@Matteo Galdi, could you describe your wire and coil for us? Also a print screen of Device Monitor while firing would be helpful as well.

Sorry but I'm not understanding your problem. Is it that your mod is switching from temperature mode to wattage mode as soon as you press the fire button? Or is it some thing else? Originally I thought it was because you had "Temperature-Dominant box checked but decided I was probably mistaken so I the deleted my earlier post. I'm including pictures of "Temperature-Dominant both on and off.

Am I reading this right? You have four 1550 mAh LiPo cells wired in parallel? Using Device Monitor while firing coil you will see your voltage drop. That will give the info needed. If the wiring of the pack is up to it that sounds like it has a potential of over 100 amp output. You might consider adding a 35 amp miniature blade automotive fuse and holder between the pack and board if there is room. Not to protect the board but to protect the user, man that is a lot of power. I like it.

Check to see if the button on the board is clicky. Look at 5 and 6 for solder bridging them.

Nichrome by any other name is still Nichrome. I had to look up what a TFV16 was.

This is the first time that I hear about this particular problem, others have had a problem with mod not coming out of deep sleep or had no connection to battery. Perhaps someone else has some ideas but you should contact Evolv for a remedy. https://helpdesk.evolvapor.com/index.php?a=add&category=1

Also if you haven't already do a hard reboot either with EScribe or take the battery out and put it back in.

When connected to EScribe it fires the coil normally? How about posting a screen shot of Device Monitor while firing? Like this one.

A DNA250 has the same physical dimensions. Edit: DNA200 board available here: https://www.evolvapor.com/shop https://downloads.evolvapor.com/dna200.pdf https://downloads.evolvapor.com/dna250.pdf

Perhaps this will be of some help: https://www.protovapor.com/wp-content/uploads/2018/11/XPV75C-Instructions-V1.1.pdf

Perhaps something here might be of some help: https://appuals.com/fix-usb-device-not-recognized-on-windows-10/ Also maybe have a look at your UEFI/Bios settings pertaining to USB ports.

I don't know if they used a JST plug to attach the battery sled to the balance tap on board or not but most likely they soldered the wires on. It looks as if the battery tap is not connected. If you are unable to check this yourself I suggest you start a ticket with Evolv rather than sending it back to China.