Thanks for the tip regarding version 3.0 and 4.0. The complete trace DAVdroid write to SD-Card contains “VERSION:4.0”. Owncloud somehow falsly converts it to “VERSION:3.0” without converting the values properly. So this ticket can be closed. Thanks for your help.
P.S.: This is my oc workaround: https://github.com/s3menzer/contacts/commit/5e5a813f8eaff6a77dc2b2f9abb533a5f973a5db
Google Play license verification check error
since updating from version 1.5.2-gplay my sync stopped working and I get a notification saying the Google Play license verification has failed.
I am currently running lineageOS without google play and I’ve bought the application from the Play Store (on my other phone that I use exclusively to download apps and updates from the store with my google account).
If I roll back to version 1.5.2 everything works again, did anything change since version 1.5.2? Any help would be really appreciated.
For devices without Google Play, please use the DAVdroid OSE version from F-Droid. The Google Play version checks its license.
License check was for testing purposes only and will be removed in the next version. In the meanwhile, please use the F-Droid version (or compile DAVdroid from the sources).