So I got my all black SX Mini M Class from Vapinart today. Opened up the packaging and the seal was already cut. I'm like ok... I take out the mod and notice 2 small scuff marks on the top shoulder of the device on the side parallel with the button. I took at the 510 connection and there is scratches like its had an atty screwed down on it before. So I'm a little upset at this point. No one likes paying full price for openbox/returned items. But at this point I'm willing to suck it up and not complain. I was able to buff the tiny scuff marks to almost non visibility. You had to really look for them after I rubbed them with my shirt and some spit (yuk).
So I throw a fresh charged battery in it and my brand new billow v2 and it vapes like a champ. I was quite impressed with how hard it hit at 30 wats with a kanthal build. Then its time to drive to work and I vape the whole way there like I normally do. When I get to work I look at the screen and to my dismay its all messed up and unreadable.

The screen will still rotate, the device is still vapable. If you remove the battery the SX logo comes up clear and then the screen will come up fine for a few secs then go scrambled again. Sometimes its completely scrambled sometimes very small pieces of info are readable.
I do not know if this was a open box returned item that I was sold, or if vapinart just breaks the seal to check devices before they mail them. My Vapor Flask V2 I got from them was in pristine condition and works flawlessly. I'm pretty bummed and have emailed vapinart, hoping to hear from them tomorrow.