Couldn't update to /e/OS 3.1.4

I am not sure how you could improve it ! I feel it is like learning a new language, it takes time and some effort…

I tried the dirty upgrade but I got this recovery screen (I wasn’t expecting it). Shoud I follow the steps of the“Universal Method” you described? I am confused!

I tried apply update but I just have as only option “apply from adb”