blueridgedog Posted December 19, 2015 Author Report Posted December 19, 2015 This has just come up in what has been an otherwise correctly working mod. The above shows what the mod looks like when the issue arrives. It is a .17 ohm build, but the board will occasionally see it as .23. How can it read .186 and calculate a cold ohm value of .234?Giving it a hard reboot, resets it: Is this a case calibration issue or????The issue is a PITA as it requires a computer to overcome, or a manual change to the set temp to keep vaping.I know my way around the board and building TC atomizers and this one has me stumped.
blueridgedog Posted December 19, 2015 Author Report Posted December 19, 2015 The only theory I have right now is that the mod goes into "ohms lock" mode. I just went into that profile and clicked unlock and it behaved as it it was locked previously. We could use some indication (on the mod?) if it is in locked mode. I don't use ohms lock as I just usually toss atomizers that require it into the trash, so if that is the issue, I have no idea how it arrived there.
VapingBad Posted December 19, 2015 Report Posted December 19, 2015 You should also be able get the same result forcing a new coil reading without a PC connection by loosening the atty, firing, re-tightening the atty and choosing new coil. It does seem to be a bug in refinement I would expect the logic give high priority to using the minimum resistance it measures while the room temp is >= 70 F as cold ohms.Does soft reboot have the same effect? Hard will lose the short term memory used by refinement and I would expect soft to store the current cold ohms before cycling. Hard is the same as disconnecting the battery and soft the same as going into sleep mode with regard to saving settings.
blueridgedog Posted December 19, 2015 Author Report Posted December 19, 2015 I will try soft next time as well as atomizer removal. Right now I am just starting to chase this down as it manifested itself just two days ago. I am still not certain why the room temp is also so far off, but I can't run case analyzer due to USB disconnects that happen with a virtual OS.
blueridgedog Posted December 19, 2015 Author Report Posted December 19, 2015 I also put the 9/30 firmware on while messing with it.
VapingBad Posted December 19, 2015 Report Posted December 19, 2015 I got a similar behaviour from an origenny V2 clone jumping 30-40% in resistance after the mod had cooled for a few hours and cured it by tightening the common coil ground screw with a Allen key rather than the screw driver type ones, it had previously felt tight and it felt like I was doing it up far too tight for a M2.5 screw but it cured the problem.
blueridgedog Posted December 20, 2015 Author Report Posted December 20, 2015 Soft reboot fixed it once. But did not on subsequent tries. It is happening now on all atomizers...odd.
VapingBad Posted December 20, 2015 Report Posted December 20, 2015 Does your mod use a chassis common ground, if so it is worth tweaking the ground screws and checking the 510 to body is making a good connection.
blueridgedog Posted December 20, 2015 Author Report Posted December 20, 2015 It is one of the Evolv reference cases....I am going to look at the 510 retaining clip...after that I will swap out the chip.
VapingBad Posted December 20, 2015 Report Posted December 20, 2015 Check the board screws BRD https://forum.evolvapor.com/topic/67722-topic/
blueridgedog Posted December 20, 2015 Author Report Posted December 20, 2015 That was the first thing I tried...will pull them all the way out tomorrow and wiggle the board.
blueridgedog Posted December 21, 2015 Author Report Posted December 21, 2015 Removed and reseated the board. Issue persists. Mod resistance measures .012 with a dead short at the 510. I think the chip has gone south.
jj6404 Posted December 22, 2015 Report Posted December 22, 2015 VapingBad said:You should also be able get the same result forcing a new coil reading without a PC connection by loosening the atty, firing, re-tightening the atty and choosing new coil. It does seem to be a bug in refinement I would expect the logic give high priority to using the minimum resistance it measures while the room temp is >= 70 F as cold ohms.Does soft reboot have the same effect? Hard will lose the short term memory used by refinement and I would expect soft to store the current cold ohms before cycling. Hard is the same as disconnecting the battery and soft the same as going into sleep mode with regard to saving settings. How do you hard or soft reboot???
MegaVape Posted December 22, 2015 Report Posted December 22, 2015 It is an option in the Escribe software. It's under "Tools"
jj6404 Posted December 22, 2015 Report Posted December 22, 2015 MegaVape said:It is an option in the Escribe software. It's under "Tools"Ok, I'll check. While on the topic, let me ask a question completely unrelated to this thread and forum (lol), does anyone know how to reboot an Evic VTC Mini to force the New Coil/Same Coil prompt?
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