Thanks, that worked!
I exported all contacts into a vcf.
Deleted all contacts in the DAVx5 account and reimported from vcf.
Hopefully nothing got lost, can’t check everything in detail.
A bit of a long way round but at least it worked.
A trouble on installation after purchase it on google playstore.
From playstore i can’t install DAVdroid, it not download the application :
Playstore show error popups:
This is a Play Store problem and not related to DAVdroid. Did you search the Google help for the problem? Do you use a Custom ROM?
Please try to: