eVic-VT mini?

[iowa31s]

I contacted joyetech tech support North America, and told them about the shrinking resistance, and my screen issues, and they recommended that I contact my purchase location. I contacted MVS, and they gave me an RMA number, and mailing label. My new one is supposed to be here Thursday. I was using TI in mine, and had the issue. There is a part of me that has been wondering about if in the moment that I press the fire button three times to get to the menu to lock the resistance, if there is voltage going to the coil, and changing the resistance? But if you read the manual, it implies that a small change in resistance should just be compensated for, and it even indicates that locking the resistance is not absolutely needed, as it automatically locks in a base resistance when you put the tank on, and it is only needed if you remove a warm tank, and refill it. But everything I have read about TC indicates that locking the resistance at room temp is critical to accurate performance. I will say that I tried mine both ways, and did not notice a difference when it was locked or UN-locked, the resistance would still be lower after it went to soft sleep, and the vape was almost non existent.

My mod has been out in the wind with the RMA since 9/18, due to the postal service misplacing the package for a few days, so I have been doing a LOT of reading, thinking, and pondering this problem. I will post a follow up here once I have the new one, and have a chance to play around with it. This is my first TC mod, but I have done a lot of research and reading about them, so I feel like it is not ignorance on my part, as I have a perfectly fine grasp of how it works. Hopefully if there is a problem with a majority of the devices, then a firmware update will be released to fix the issue. If it is a minority of the devices, I hope that there will be a replacement under warranty for them.

 

[Tpat591]

It was probably present in all of them but most people stuck with stock heads until they could get supplies for rebuilding. Now that people are branching out, these issues are coming to light.

 

[TrollDragon]

Anyone using RDAs experiencing the same problem? Very weird indeed. But this is probably the reason behind upgradable firmware so that when this kind of stuff happens they can fix it. This is the first release after all.

I heard all that before with my FiiO X3 DAP... Eight months we waited for a firmware to fix all the little bugs and now they have stopped updating it since their new FiiO X3 V2 DAP has come out and we have a firmware that is 80% complete... They managed to kill all the lockup bugs and stopped changing the output levels. Everyone was "It's their first release so cut them some slack... Sorry I paid good money for a products that was rushed out to market incomplete... "Next Firmware Fix You Issue", "Next Firmware Fix You Issue, Guaranteed" they would say but then they would introduce 3 more bugs with the one problem they fixed.

That's the little beastie there on the left...

This is not Joyetech's first rodeo, the bigger unit had issues as well if I remember correctly.

 

[zeus01]

Anyone using RDAs experiencing the same problem? Very weird indeed. But this is probably the reason behind upgradable firmware so that when this kind of stuff happens they can fix it. This is the first release after all.

aside from me?
hahahhaha

been on rda's even on the first days,
for some reason,
the first few days were ok until i had to rebuild for fun again.

could contact coils be the cause?

 

[Jesse Wright]

Wouldn't a simple drop in resistance not be causing these problems? I mean you could just lock the new resistance in and it should work just fine... right? I'm guessing it's chip/firmware problems. Builds above .2 working as intended would also lead me to this reasoning. If they released the product with fw upgradeability they surely intend to use it... based on the previous problems in the original model. Yes one fix may introduce new bugs but nothing is perfect as we have seen time and time again w other mods.

 

[Jesse Wright]

aside from me?
hahahhaha

been on rda's even on the first days,
for some reason,
the first few days were ok until i had to rebuild for fun again.

could contact coils be the cause?

I'm guessing not because ni builds were having the same problem. But you should try a spaced build on an rda above .2 ohms if possible to see if that remedies the problem. It sounds like it is reading resistance too high too quick making it think it needs to tone power down when it really doesn't. Base reading of resistance/actual build resistance is the only thing I can think of besides chip or firmware problems.

 

[Jesse Wright]

Wait. Shorts could cause this problem as well and much more instantly as we are seeing. I've heard of rda screws unscrewing initially as the wire expands w heating and cooling. Maybe try spaced builds and tightening post screws down after first few uses? If using ti try to fire at like 400f just to see if heating evenly. Just an idea...

 

[zeus01]

I'm guessing not because ni builds were having the same problem. But you should try a spaced build on an rda above .2 ohms if possible to see if that remedies the problem. It sounds like it is reading resistance too high too quick making it think it needs to tone power down when it really doesn't. Base reading of resistance/actual build resistance is the only thing I can think of besides chip or firmware problems.

ill update you tommorow if that would help.
hopefully,I can acquire a titanium 0.40mm
have it working...

still stuck @ work hahahhaha

 

[Jesse Wright]

Just pulled the trigger and will share my experiences when I receive

 

[VapingBad]

Been following this and would just to say that for temp limiting in general res locking is not a absolute must, IMO it is the opposite and it is better not to lock res if your mod supports that, unless it is for fitting warm atties. With DNAs you just don't need it unless you have a bad connection, I have only use it a couple of times in the last 11.5 months as a temp hack until I could sort out the build. The base res refinement will give you a more accurate reading so better temp regulation, maybe Joye have been more ambitious than others.

(All my DNAs have VariTube connections and some models were let down by poor 510s and did have some variance in cold res)

Hope the Evic Minis get sorted it looks like a nice mod.

 

[zeus01]

Been following this and would just to say that for temp limiting in general res locking is not a absolute must, IMO it is the opposite and it is better not to lock res if your mod supports that, unless it is for fitting warm atties. With DNAs you just don't need it unless you have a bad connection, I have only use it a couple of times in the last 11.5 months as a temp hack until I could sort out the build. The base res refinement will give you a more accurate reading so better temp regulation, maybe Joye have been more ambitious than others.

(All my DNAs have VariTube connections and some models were let down by poor 510s and did have some variance in cold res)

Hope the Evic Minis get sorted it looks like a nice mod.

I was lost in translation what do you mena on warm atties?

so if i understood right

not lock resistance should sort out our temp issue?
mainly,hitting the temp ceiling instantly?

 

[VapingTurtle]

I apologize if I have insulted anyone along the way. (I'm looking at you, @zeus01.) The fact that I have not had problems does not mean that other's problems are not real.

I have had absolutely no problems with the VTC Mini in TC. I use a simple single coil, closely spaced but not contact, 28 gauge Ti, .3 to .5 ohms, resistance locked in an 80F room, in a KFL+, at 26 to 30 watts, 380 to 420 F.

FW ver 1.10, magnet number Y09002.

 

[VapingTurtle]

Been following this and would just to say that for temp limiting in general res locking is not a absolute must, IMO it is the opposite and it is better not to lock res if your mod supports that, unless it is for fitting warm atties. With DNAs you just don't need it unless you have a bad connection, I have only use it a couple of times in the last 11.5 months as a temp hack until I could sort out the build. The base res refinement will give you a more accurate reading so better temp regulation, maybe Joye have been more ambitious than others.

Since the target temp is only determined by the change in resistance from the base resistance, I can't see how TC could work without locking the base temp. I may be wrong, but don't DNAs (and some others) automatically set a base resistance on the first fire? Any board that does not automatically lock a base resistance (like the VTC Mini) must be locked for TC to work.

 

[zeus01]

I apologize if I have insulted anyone along the way. (I'm looking at you, @zeus01.) The fact that I have not had problems does not mean that other's problems are not real.

I have had absolutely no problems with the VTC Mini in TC. I use a simple single coil, closely spaced but not contact, 28 gauge Ti, .3 to .5 ohms, resistance locked in an 80F room, in a KFL+, at 26 to 30 watts, 380 to 420 F.

FW ver 1.10, magnet number Y09002.

its fine sir,
i admit i am new to temp control,
and still learning everyday on ti wires etc

but i do know how to read the manual
and follow instructions and ask,sometimes i know its annoying,but i am on another part of the world (ph) so sometimes i need to ask if i understood right,( language barrirer,translation)
I apologize as well for being annoying at time with repeated questions,
the device here in ph is fairly new,and heck even temp controls,
and vw are still new,90 percent of vapers here still cling to their box mods,mech mods,

so its hard to ask help here.

but all is good,


will try to shoot the resistance range you are running and see it that helps.

seems like it the resistance range that causes issues.

510 connection well,still looking into it,but possibly not.

 

[VapingBad]

I was lost in translation what do you mena on warm atties?

so if i understood right

not lock resistance should sort out our temp issue?
mainly,hitting the temp ceiling instantly?

I don't have an EVic Mini, but it may be able to work it out like a DNA can if you fire it a few times and leave it to cool on the mod. A DNA would track the res and the mod temp to get a more accurate base res and someone said in an earlier post that the instructions say locking res in only need for when you put a warm atty on (meaning that it would have been locked before for that atty and not locking when warm) so the Evic may try and do a similar thing the the DNAs.

I mainly posted as the lock is absolutely need for temp limiting thing is getting repeated a lot and I have found the opposite and been my ADV for 11.5 months now.

 

[VapingBad]

Since the target temp is only determined by the change in resistance from the base resistance, I can't see how TC could work without locking the base temp. I may be wrong, but don't DNAs (and some others) automatically set a base resistance on the first fire? Any board that does not automatically lock a base resistance (like the VTC Mini) must be locked for TC to work.

Yes, if it is close to the last res it prompts you for new/same coil, but if you leave the lock off it refines the base/cold res as the coils cool.

 

[zeus01]

I don't have an EVic Mini, but it may be able to work it out like a DNA can if you fire it a few times and leave it to cool on the mod. A DNA would track the res and the mod temp to get a more accurate base res and someone said in an earlier post that the instructions say locking res in only need for when you put a warm atty on (meaning that it would have been locked before for that atty and not locking when warm) so the Evic may try and do a similar thing the the DNAs.

I mainly posted as the lock is absolutely need for temp limiting thing is getting repeated a lot and I have found the opposite and been my ADV for 11.5 months now.

oik forgive me for being dense

bthis is your suggestion

unlock resistance,
set temp
fire a few times (2-3)
let it cool again( 5-10mins)

then try


right?

if confirmed will try later and report back

 

[VapingBad]

oik forgive me for being dense

bthis is your suggestion

unlock resistance,
set temp
fire a few times (2-3)
let it cool again( 5-10mins)

then try


right?

if confirmed will try later and report back

unlock resistance,
remove the atty & fire so it clears the res value
refit atty & fire a few times (2-3) have a vape so it get proper warm
let it cool again( 10-60mins) IIRC the DNA40 refines for upto an hour, but letting the mod and coil cool together when idle should have a good bit of refinement.

good luck

 

[Nailz]

Well I will add, even the prebuilt CLR-Ti heads doesn't work properly on my mini, I've ended up using them on a different mod which they work great on, hopefully a firmware update will sort out the problems some of us are having with the TC on it.

 

[zeus01]

unlock resistance,
remove the atty & fire so it clears the res value
refit atty & fire a few times (2-3) have a vape so it get proper warm
let it cool again( 10-60mins) IIRC the DNA40 refines for upto an hour, but letting the mod and coil cool together when idle should have a good bit of refinement.

good luck

thanks will give it a shot later on,.,,