Is this maybe the same problem as https://forums.bitfire.at/topic/2334/can-t-add-contact-in-google-contacts-on-android-11-beta and related to Google Contacts? Can you try another contacts app, for instance Simple Contacts?

The biggest reasons to keep your Google Calendar around would be that most other people use it and it also does an amazing job scrapping my GMail (kind of shudder worthy if you think about it) for events to automatically add to the calendar. Think of a friend sharing an upcoming event of theirs or a flight you got an email confirmation of. I THINK I can work around this by adding Google’s Calendar to NextCloud as a subscription just to keep an eye on new events popping up. Contacts is a bit more of a hassle but I think I can live with it. Google, again, will pull information from anything it can to fill in contact information, such as from GMail or your phones Contact app. Most times, where do your modify your contacts? On your phone. In the end I don’t think it is as important to have my contacts in NextCloud as it is calendars, since it is not like I am emailing or texting from NextCloud, their app already sends backups to NextCloud and I can live with this.

Is this maybe the same as https://forums.bitfire.at/topic/2333/save-contact-to-on-note10/ and rather related to Google Contacts instead of Android 11? I can’t reproduce the problem in the emulator with the same Android version: 11 (RPB1.200504.020) and com.android.contacts 1.7.31. Can you try another contacts app, for instance Simple Contacts?t

This should be fixed in the next version. I can also send you an APK if you’d like to test it, but you would have to uninstall DAVx5 and then install it again (because the signing key is different from the -ose one). And then the problem would probably disappear in any case, so we won’t know if it’s fixed by the updated APK or by the re-installation.

Hi, DAVx5 uses an Android WebView to show the Nextcloud login page. According to WebViewClient’s documentation: Applications are advised not to prompt the user about SSL errors, as the user is unlikely to be able to make an informed security decision and WebView does not provide any UI for showing the details of the error in a meaningful way. So if you’re using self-signed certificates, please create the account directly in DAVx5 instead of using the Login Flow from the Nextcloud app. Or get a free Let’s Encrypt certificate, in case that your service is accessible from the Internet…