Sometimes not for weeks but somedays it kind of hates me and locks into some backlit blankscreen state only recoverable by vol up + Power reboot multiple times in a row. I do not know how to nail the problem. It is most propably because i misconfigured "something" (mce?) and i do not blame Jolla until i tried a factory reset.
Also my unnecessarily bloated dalvik install could be the root of the problem and i would only set up a minimum on a fresh device now that i know my usecase better.
Got no time for that unfortunately so i am waiting what the XA2 port will bring and move there. Or if XA2 disappoints reflash/reset xperia x.
I would already have tried reflash if the problem was bugging me more serious though