If you have Open OS you probably have to switch to FP OS Lollipop anyway before being able to upgrade - unless you wait for the Open OS Marshmallow Upgrade.
The upgrade will fail if you don’t have the official Google App and if your device is “modified” - and Open OS is full of modifications (root, TWRP, no GAPPS).
I’ve tried 4 o 5 times in the last 2 hours, and after the downloading and the reboot, the installation fails saying “unexpected contents”. I’ve cleaned the cache partition, and the Updater app data and cache data, but every time I try it ends the same. Anyone else out there seeing the same issue?
Failing for me on a rooted phone, I get an error when verifying the sideload. Says that I has unexpected contents. Problem is release-keys. Anyone else?
The updater crashed without any explanations several times, but i found that the problem was that i did not have enough space. After removing some files it works.
Thanks Paul, yes, I rooted the phone a couple of moths ago but then (in theory) unrooted it. It seems that I did not do it correctly, if anyone has a hint to do it right please share. Thanks!
Thanks a lot for your kind help Paul. What I did to unroot was precisely that, however I’m willing to try it again but in the Updater’s Advanced Mode I just see one entry for 17.04.8, and nothing for 1.13.0
One question, if I follow the full update procedure whenever the binary file is available, I will lose my user data, or it is safe on this regard?