Thank you for the quick reply, I will contact Horde.
DAVdroid > 22.214.171.124-ose compatibility issue
On Android 4.0.3, the last working version of DAVdroid is 126.96.36.199-ose. I’ve tried 1.6.2-ose and 1.6.3-ose and both make android freeze when trying to sync.
v188.8.131.52 is doing the job anyway, thanks for your work.
See DAVdroid 1.6.3 release notes: Android 4.1 is required now