It is an evolv error screen. This happened on my evolv beta mod. I woke up this morning, unplugged my device as usual, tried to take a vape (yes I vape first thing in the morning while still in bed), then I got no vape, checked the screen and nothing, then I saw the error message but at only 5% brightness. As I try and squint to see what was going on, boom full brightness. This was rather disturbingly bright before my eyes could adjust. "ERROR PRESS UP TO CONTINUE." What do I do? I press up. It's vaping like normal. Except my mod is fully charged and all cells are at 4.2 volts. Personally, if I were to guess, it was protecting the cells from overcharging. I'm not sure though, I'm not evolv. Only someone in evolv can explain this. I did check the manual and according to the manual, no such error message exists. Yet the error does exist. I'll post a pic if it happens again.