@Crystal Thank you for reply. Firstly I am wondering how you understand that is mine V1 and how can I identify version by myself?

Hello I just bought X40 2nd hand. And I upgrade firmware from 1.1.2 (I guess) to V3 1.4.8 and after that every opening its checking the movements and when its come to z axis its going up until end but never stops even if there is no way to go anymore. So is this because of V3 frameware and/or is my machine V1 and should I use basic version of this update? Also how can I identify my machine's version? Or is this problem something else?