sync issue in xiaomi

fastidio

Hello, DavDroid 1.2.3-ose (and earlier) won't sync on my Xiaomi Mi4c with MIUI 8.5.1 developer.
It should sync with an owncloud v. 9.0.1 server
Nothing happens.

I checked all permissions in the MIUI permissions... all granted to DavDroid.
I tried aCalDav and it syncs correctly my calendars.
DavDroid is able to "see" there are personal contacts and several calendars on the server, it lists them but don't syncronize anything.
I've also turned on logging... It writed once. (Pasted aboce. I change my real ip with "my_ip" and my real user name with "my_user_name")

Maybe is an issue with the ssl certificate?
I use a self signed certificate on my owncloud server. It didn't give me problems on old mobiles.

Any clue?
thanks for your work and your help

2016-08-16 15:46:01 2 [AccountSettings] Account my_user_name.owncloud has version 4, current version: 4
2016-08-16 15:46:50 0 [AccountSettings] Account my_user_name.owncloud has version 4, current version: 4
2016-08-16 15:46:54 0 [AccountSettings] Account my_user_name.owncloud has version 4, current version: 4
2016-08-16 15:47:42 3 [DavService$RefreshCollections] Refreshing carddav collections of service #1
2016-08-16 15:47:43 3 [AccountSettings] Account my_user_name.owncloud has version 4, current version: 4
2016-08-16 15:47:43 3 [DavService$RefreshCollections] Querying principal for home sets
2016-08-16 15:47:43 3 [dav4android.PropertyRegistry] Registering DAV property factories
2016-08-16 15:47:43 3 [dav4android.PropertyRegistry] Registering at.bitfire.dav4android.property.AddressbookDescription$Factory for addressbook-description(urn:ietf:params:xml:ns:carddav)
2016-08-16 15:47:43 3 [dav4android.PropertyRegistry] Registering at.bitfire.dav4android.property.AddressbookHomeSet$Factory for addressbook-home-set(urn:ietf:params:xml:ns:carddav)
2016-08-16 15:47:43 3 [dav4android.PropertyRegistry] Registering at.bitfire.dav4android.property.AddressData$Factory for address-data(urn:ietf:params:xml:ns:carddav)
2016-08-16 15:47:43 3 [dav4android.PropertyRegistry] Registering at.bitfire.dav4android.property.CalendarColor$Factory for calendar-color(http://apple.com/ns/ical/)
2016-08-16 15:47:43 3 [dav4android.PropertyRegistry] Registering at.bitfire.dav4android.property.CalendarData$Factory for calendar-data(urn:ietf:params:xml:ns:caldav)
2016-08-16 15:47:43 3 [dav4android.PropertyRegistry] Registering at.bitfire.dav4android.property.CalendarDescription$Factory for calendar-description(urn:ietf:params:xml:ns:caldav)
2016-08-16 15:47:43 3 [dav4android.PropertyRegistry] Registering at.bitfire.dav4android.property.CalendarHomeSet$Factory for calendar-home-set(urn:ietf:params:xml:ns:caldav)
2016-08-16 15:47:43 3 [dav4android.PropertyRegistry] Registering at.bitfire.dav4android.property.CalendarProxyReadFor$Factory for calendar-proxy-read-for(http://calendarserver.org/ns/)
2016-08-16 15:47:43 3 [dav4android.PropertyRegistry] Registering at.bitfire.dav4android.property.CalendarProxyWriteFor$Factory for calendar-proxy-write-for(http://calendarserver.org/ns/)
2016-08-16 15:47:43 3 [dav4android.PropertyRegistry] Registering at.bitfire.dav4android.property.CalendarTimezone$Factory for calendar-timezone(urn:ietf:params:xml:ns:caldav)
2016-08-16 15:47:43 3 [dav4android.PropertyRegistry] Registering at.bitfire.dav4android.property.CurrentUserPrincipal$Factory for current-user-principal(DAV:)
2016-08-16 15:47:43 3 [dav4android.PropertyRegistry] Registering at.bitfire.dav4android.property.CurrentUserPrivilegeSet$Factory for current-user-privilege-set(DAV:)
2016-08-16 15:47:43 3 [dav4android.PropertyRegistry] Registering at.bitfire.dav4android.property.DisplayName$Factory for displayname(DAV:)
2016-08-16 15:47:43 3 [dav4android.PropertyRegistry] Registering at.bitfire.dav4android.property.GetContentType$Factory for getcontenttype(DAV:)
2016-08-16 15:47:43 3 [dav4android.PropertyRegistry] Registering at.bitfire.dav4android.property.GetCTag$Factory for getctag(http://calendarserver.org/ns/)
2016-08-16 15:47:43 3 [dav4android.PropertyRegistry] Registering at.bitfire.dav4android.property.GetETag$Factory for getetag(DAV:)
2016-08-16 15:47:43 3 [dav4android.PropertyRegistry] Registering at.bitfire.dav4android.property.GetLastModified$Factory for getlastmodified(DAV:)
2016-08-16 15:47:43 3 [dav4android.PropertyRegistry] Registering at.bitfire.dav4android.property.GroupMembership$Factory for group-membership(DAV:)
2016-08-16 15:47:43 3 [dav4android.PropertyRegistry] Registering at.bitfire.dav4android.property.ResourceType$Factory for resourcetype(DAV:)
2016-08-16 15:47:43 3 [dav4android.PropertyRegistry] Registering at.bitfire.dav4android.property.SupportedAddressData$Factory for supported-address-data(urn:ietf:params:xml:ns:carddav)
2016-08-16 15:47:43 3 [dav4android.PropertyRegistry] Registering at.bitfire.dav4android.property.SupportedCalendarComponentSet$Factory for supported-calendar-component-set(urn:ietf:params:xml:ns:caldav)
2016-08-16 15:47:43 3 [HttpClient$1] --> PROPFIND https://my_ip/remote.php/dav/principals/users/my_user_name/ http/1.1
2016-08-16 15:47:43 3 [HttpClient$1] Content-Type: application/xml; charset=utf-8
2016-08-16 15:47:43 3 [HttpClient$1] Content-Length: 221
2016-08-16 15:47:43 3 [HttpClient$1] Depth: 0
2016-08-16 15:47:43 3 [HttpClient$1] 
2016-08-16 15:47:43 3 [HttpClient$1] <?xml version='1.0' encoding='UTF-8' ?><propfind xmlns="DAV:" xmlns:CAL="urn:ietf:params:xml:ns:caldav" xmlns:CARD="urn:ietf:params:xml:ns:carddav"><prop><CARD:addressbook-home-set /><group-membership /></prop></propfind>
2016-08-16 15:47:43 3 [HttpClient$1] --> END PROPFIND (221-byte body)
2016-08-16 15:47:44 3 [dav4android.BasicDigestAuthHandler] Trying Basic auth preemptively
2016-08-16 15:47:44 3 [dav4android.BasicDigestAuthHandler] Adding Basic authorization header for https://my_ip/remote.php/dav/principals/users/my_user_name/
2016-08-16 15:47:44 3 [HttpClient$1] <-- 207 Multi-Status https://my_ip/remote.php/dav/principals/users/my_user_name/ (1301ms)
2016-08-16 15:47:44 3 [HttpClient$1] Date: Tue, 16 Aug 2016 13:47:44 GMT
2016-08-16 15:47:44 3 [HttpClient$1] Server: Apache/2.2.22 (Debian)
2016-08-16 15:47:44 3 [HttpClient$1] Strict-Transport-Security: max-age=15768000; includeSubDomains; preload
2016-08-16 15:47:44 3 [HttpClient$1] X-Powered-By: PHP/5.4.45-0+deb7u4
2016-08-16 15:47:44 3 [HttpClient$1] Set-Cookie: oc8241418ed0=nj7vehq96508v7of9ske1ipmp0; path=/; HttpOnly
2016-08-16 15:47:44 3 [HttpClient$1] Expires: Thu, 19 Nov 1981 08:52:00 GMT
2016-08-16 15:47:44 3 [HttpClient$1] Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
2016-08-16 15:47:44 3 [HttpClient$1] Pragma: no-cache
2016-08-16 15:47:44 3 [HttpClient$1] Set-Cookie: oc_sessionPassphrase=lS7sCPJQQWt1y8nlZa6FTXWRU4lNtDx7orOEXjd4oG75SWLLqvnH%2FAzOJrBgVM%2BZ6%2BZYIVjSTmcktszSwCSlBHrjbHxSdA9BsSM2TBMpuanJCpgpgl9P7G8wWeAQMXfh; path=/; secure; httponly
2016-08-16 15:47:44 3 [HttpClient$1] Content-Security-Policy: default-src 'none';
2016-08-16 15:47:44 3 [HttpClient$1] Set-Cookie: oc8241418ed0=5ufn3mvqadqdu318abvfon9hg1; path=/; secure; HttpOnly
2016-08-16 15:47:45 3 [HttpClient$1] Set-Cookie: cookie_test=test; expires=Tue, 16-Aug-2016 14:47:44 GMT
2016-08-16 15:47:45 3 [HttpClient$1] Vary: Brief,Prefer
2016-08-16 15:47:45 3 [HttpClient$1] DAV: 1, 3, extended-mkcol, access-control, calendarserver-principal-property-search, calendar-access, calendar-proxy, calendar-auto-schedule, calendarserver-subscribed, oc-resource-sharing, addressbook
2016-08-16 15:47:45 3 [HttpClient$1] X-Content-Type-Options: nosniff
2016-08-16 15:47:45 3 [HttpClient$1] X-XSS-Protection: 1; mode=block
2016-08-16 15:47:45 3 [HttpClient$1] X-Robots-Tag: none
2016-08-16 15:47:45 3 [HttpClient$1] X-Frame-Options: SAMEORIGIN
2016-08-16 15:47:45 3 [HttpClient$1] X-Download-Options: noopen
2016-08-16 15:47:45 3 [HttpClient$1] X-Permitted-Cross-Domain-Policies: none
2016-08-16 15:47:45 3 [HttpClient$1] Content-Length: 697
2016-08-16 15:47:45 3 [HttpClient$1] Keep-Alive: timeout=5, max=100
2016-08-16 15:47:45 3 [HttpClient$1] Connection: Keep-Alive
2016-08-16 15:47:45 3 [HttpClient$1] Content-Type: application/xml; charset=utf-8
2016-08-16 15:47:45 3 [HttpClient$1] 
2016-08-16 15:47:45 3 [HttpClient$1] <?xml version="1.0"?>
<d:multistatus xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns" xmlns:cal="urn:ietf:params:xml:ns:caldav" xmlns:cs="http://calendarserver.org/ns/" xmlns:card="urn:ietf:params:xml:ns:carddav" xmlns:oc="http://owncloud.org/ns">
 <d:response>
  <d:href>/remote.php/dav/principals/users/my_user_name/</d:href>
  <d:propstat>
   <d:prop>
    <card:addressbook-home-set>
     <d:href>/remote.php/dav/addressbooks/users/my_user_name/</d:href>
    </card:addressbook-home-set>
    <d:group-membership>
     <d:href>/remote.php/dav/principals/groups/admin/</d:href>
    </d:group-membership>
   </d:prop>
   <d:status>HTTP/1.1 200 OK</d:status>
  </d:propstat>
 </d:response>
</d:multistatus>

2016-08-16 15:47:45 3 [HttpClient$1] <-- END HTTP (697-byte body)
2016-08-16 15:47:45 3 [dav4android.DavResource] Received <response> for https://my_ip/remote.php/dav/principals/users/my_user_name/
	PARAMETER #1 = [group-membership(DAV:): hrefs=[/remote.php/dav/principals/groups/admin/], addressbook-home-set(urn:ietf:params:xml:ns:carddav): hrefs=[/remote.php/dav/addressbooks/users/my_user_name/]]
2016-08-16 15:47:45 3 [DavService$RefreshCollections] Principal is member of group /remote.php/dav/principals/groups/admin/, checking for home sets
2016-08-16 15:47:45 3 [HttpClient$1] --> PROPFIND https://my_ip/remote.php/dav/principals/groups/admin/ http/1.1
2016-08-16 15:47:45 3 [HttpClient$1] Content-Type: application/xml; charset=utf-8
2016-08-16 15:47:45 3 [HttpClient$1] Content-Length: 221
2016-08-16 15:47:45 3 [HttpClient$1] Depth: 0
2016-08-16 15:47:45 3 [HttpClient$1] 
2016-08-16 15:47:45 3 [HttpClient$1] <?xml version='1.0' encoding='UTF-8' ?><propfind xmlns="DAV:" xmlns:CAL="urn:ietf:params:xml:ns:caldav" xmlns:CARD="urn:ietf:params:xml:ns:carddav"><prop><CARD:addressbook-home-set /><group-membership /></prop></propfind>
2016-08-16 15:47:45 3 [HttpClient$1] --> END PROPFIND (221-byte body)
2016-08-16 15:47:45 3 [dav4android.BasicDigestAuthHandler] Adding Basic authorization header for https://my_ip/remote.php/dav/principals/groups/admin/
2016-08-16 15:47:45 3 [HttpClient$1] <-- 207 Multi-Status https://my_ip/remote.php/dav/principals/groups/admin/ (549ms)
2016-08-16 15:47:45 3 [HttpClient$1] Date: Tue, 16 Aug 2016 13:47:44 GMT
2016-08-16 15:47:45 3 [HttpClient$1] Server: Apache/2.2.22 (Debian)
2016-08-16 15:47:45 3 [HttpClient$1] Strict-Transport-Security: max-age=15768000; includeSubDomains; preload
2016-08-16 15:47:45 3 [HttpClient$1] X-Powered-By: PHP/5.4.45-0+deb7u4
2016-08-16 15:47:45 3 [HttpClient$1] Expires: Thu, 19 Nov 1981 08:52:00 GMT
2016-08-16 15:47:45 3 [HttpClient$1] Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
2016-08-16 15:47:45 3 [HttpClient$1] Pragma: no-cache
2016-08-16 15:47:45 3 [HttpClient$1] Content-Security-Policy: default-src 'none';
2016-08-16 15:47:45 3 [HttpClient$1] Set-Cookie: oc_username=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; secure; httponly
2016-08-16 15:47:45 3 [HttpClient$1] Set-Cookie: oc_token=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; secure; httponly
2016-08-16 15:47:45 3 [HttpClient$1] Set-Cookie: oc_remember_login=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; secure; httponly
2016-08-16 15:47:45 3 [HttpClient$1] Set-Cookie: oc_username=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/; secure; httponly
2016-08-16 15:47:45 3 [HttpClient$1] Set-Cookie: oc_token=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/; secure; httponly
2016-08-16 15:47:45 3 [HttpClient$1] Set-Cookie: oc_remember_login=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/; secure; httponly
2016-08-16 15:47:45 3 [HttpClient$1] Set-Cookie: oc8241418ed0=501hci48b6oepjt9evd4dpslk6; path=/; secure; HttpOnly
2016-08-16 15:47:45 3 [HttpClient$1] Set-Cookie: oc8241418ed0=eocuso4peiveomdhouckb9nn27; path=/; secure; HttpOnly
2016-08-16 15:47:45 3 [HttpClient$1] Set-Cookie: cookie_test=test; expires=Tue, 16-Aug-2016 14:47:45 GMT
2016-08-16 15:47:45 3 [HttpClient$1] Vary: Brief,Prefer
2016-08-16 15:47:45 3 [HttpClient$1] DAV: 1, 3, extended-mkcol, access-control, calendarserver-principal-property-search, calendar-access, calendar-proxy, calendar-auto-schedule, calendarserver-subscribed, oc-resource-sharing, addressbook
2016-08-16 15:47:45 3 [HttpClient$1] X-Content-Type-Options: nosniff
2016-08-16 15:47:45 3 [HttpClient$1] X-XSS-Protection: 1; mode=block
2016-08-16 15:47:45 3 [HttpClient$1] X-Robots-Tag: none
2016-08-16 15:47:45 3 [HttpClient$1] X-Frame-Options: SAMEORIGIN
2016-08-16 15:47:45 3 [HttpClient$1] X-Download-Options: noopen
2016-08-16 15:47:45 3 [HttpClient$1] X-Permitted-Cross-Domain-Policies: none
2016-08-16 15:47:45 3 [HttpClient$1] Content-Length: 605
2016-08-16 15:47:45 3 [HttpClient$1] Keep-Alive: timeout=5, max=99
2016-08-16 15:47:45 3 [HttpClient$1] Connection: Keep-Alive
2016-08-16 15:47:45 3 [HttpClient$1] Content-Type: application/xml; charset=utf-8
2016-08-16 15:47:45 3 [HttpClient$1] 
2016-08-16 15:47:45 3 [HttpClient$1] <?xml version="1.0"?>
<d:multistatus xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns" xmlns:cal="urn:ietf:params:xml:ns:caldav" xmlns:cs="http://calendarserver.org/ns/" xmlns:card="urn:ietf:params:xml:ns:carddav" xmlns:oc="http://owncloud.org/ns">
 <d:response>
  <d:href>/remote.php/dav/principals/groups/admin/</d:href>
  <d:propstat>
   <d:prop>
    <card:addressbook-home-set>
     <d:href>/remote.php/dav/addressbooks/groups/admin/</d:href>
    </card:addressbook-home-set>
    <d:group-membership/>
   </d:prop>
   <d:status>HTTP/1.1 200 OK</d:status>
  </d:propstat>
 </d:response>
</d:multistatus>

2016-08-16 15:47:45 3 [HttpClient$1] <-- END HTTP (605-byte body)
2016-08-16 15:47:45 3 [dav4android.DavResource] Received <response> for https://my_ip/remote.php/dav/principals/groups/admin/
	PARAMETER #1 = [group-membership(DAV:): hrefs=[], addressbook-home-set(urn:ietf:params:xml:ns:carddav): hrefs=[/remote.php/dav/addressbooks/groups/admin/]]
2016-08-16 15:47:45 3 [DavService$RefreshCollections] Listing home set https://my_ip/remote.php/dav/addressbooks/users/my_user_name/
2016-08-16 15:47:45 3 [HttpClient$1] --> PROPFIND https://my_ip/remote.php/dav/addressbooks/users/my_user_name/ http/1.1
2016-08-16 15:47:45 3 [HttpClient$1] Content-Type: application/xml; charset=utf-8
2016-08-16 15:47:45 3 [HttpClient$1] Content-Length: 422
2016-08-16 15:47:45 3 [HttpClient$1] Depth: 1
2016-08-16 15:47:45 3 [HttpClient$1] 
2016-08-16 15:47:45 3 [HttpClient$1] <?xml version='1.0' encoding='UTF-8' ?><propfind xmlns="DAV:" xmlns:CAL="urn:ietf:params:xml:ns:caldav" xmlns:CARD="urn:ietf:params:xml:ns:carddav"><prop><resourcetype /><current-user-privilege-set /><displayname /><CARD:addressbook-description /><CARD:supported-address-data /><CAL:calendar-description /><n0:calendar-color xmlns:n0="http://apple.com/ns/ical/" /><CAL:supported-calendar-component-set /></prop></propfind>
2016-08-16 15:47:45 3 [HttpClient$1] --> END PROPFIND (422-byte body)
2016-08-16 15:47:45 3 [dav4android.BasicDigestAuthHandler] Adding Basic authorization header for https://my_ip/remote.php/dav/addressbooks/users/my_user_name/
2016-08-16 15:47:46 3 [HttpClient$1] <-- 207 Multi-Status https://my_ip/remote.php/dav/addressbooks/users/my_user_name/ (420ms)
2016-08-16 15:47:46 3 [HttpClient$1] Date: Tue, 16 Aug 2016 13:47:45 GMT
2016-08-16 15:47:46 3 [HttpClient$1] Server: Apache/2.2.22 (Debian)
2016-08-16 15:47:46 3 [HttpClient$1] Strict-Transport-Security: max-age=15768000; includeSubDomains; preload
2016-08-16 15:47:46 3 [HttpClient$1] X-Powered-By: PHP/5.4.45-0+deb7u4
2016-08-16 15:47:46 3 [HttpClient$1] Expires: Thu, 19 Nov 1981 08:52:00 GMT
2016-08-16 15:47:46 3 [HttpClient$1] Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
2016-08-16 15:47:46 3 [HttpClient$1] Pragma: no-cache
2016-08-16 15:47:46 3 [HttpClient$1] Content-Security-Policy: default-src 'none';
2016-08-16 15:47:46 3 [HttpClient$1] Set-Cookie: oc_username=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; secure; httponly
2016-08-16 15:47:46 3 [HttpClient$1] Set-Cookie: oc_token=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; secure; httponly
2016-08-16 15:47:46 3 [HttpClient$1] Set-Cookie: oc_remember_login=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; secure; httponly
2016-08-16 15:47:46 3 [HttpClient$1] Set-Cookie: oc_username=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/; secure; httponly
2016-08-16 15:47:46 3 [HttpClient$1] Set-Cookie: oc_token=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/; secure; httponly
2016-08-16 15:47:46 3 [HttpClient$1] Set-Cookie: oc_remember_login=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/; secure; httponly
2016-08-16 15:47:46 3 [HttpClient$1] Set-Cookie: oc8241418ed0=8slbbadidpf8vrgbpgu851iog2; path=/; secure; HttpOnly
2016-08-16 15:47:46 3 [HttpClient$1] Set-Cookie: oc8241418ed0=popbcj2scb30in1safs278q0i5; path=/; secure; HttpOnly
2016-08-16 15:47:46 3 [HttpClient$1] Set-Cookie: cookie_test=test; expires=Tue, 16-Aug-2016 14:47:45 GMT
2016-08-16 15:47:46 3 [HttpClient$1] Vary: Brief,Prefer
2016-08-16 15:47:46 3 [HttpClient$1] DAV: 1, 3, extended-mkcol, access-control, calendarserver-principal-property-search, calendar-access, calendar-proxy, calendar-auto-schedule, calendarserver-subscribed, oc-resource-sharing, addressbook
2016-08-16 15:47:46 3 [HttpClient$1] X-Content-Type-Options: nosniff
2016-08-16 15:47:46 3 [HttpClient$1] X-XSS-Protection: 1; mode=block
2016-08-16 15:47:46 3 [HttpClient$1] X-Robots-Tag: none
2016-08-16 15:47:46 3 [HttpClient$1] X-Frame-Options: SAMEORIGIN
2016-08-16 15:47:46 3 [HttpClient$1] X-Download-Options: noopen
2016-08-16 15:47:46 3 [HttpClient$1] X-Permitted-Cross-Domain-Policies: none
2016-08-16 15:47:46 3 [HttpClient$1] Content-Length: 3148
2016-08-16 15:47:46 3 [HttpClient$1] Keep-Alive: timeout=5, max=98
2016-08-16 15:47:46 3 [HttpClient$1] Connection: Keep-Alive
2016-08-16 15:47:46 3 [HttpClient$1] Content-Type: application/xml; charset=utf-8
2016-08-16 15:47:46 3 [HttpClient$1] 
2016-08-16 15:47:46 3 [HttpClient$1] <?xml version="1.0"?>
<d:multistatus xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns" xmlns:cal="urn:ietf:params:xml:ns:caldav" xmlns:cs="http://calendarserver.org/ns/" xmlns:card="urn:ietf:params:xml:ns:carddav" xmlns:oc="http://owncloud.org/ns">
 <d:response>
  <d:href>/remote.php/dav/addressbooks/users/my_user_name/</d:href>
  <d:propstat>
   <d:prop>
    <d:resourcetype>
     <d:collection/>
    </d:resourcetype>
    <d:current-user-privilege-set>
     <d:privilege>
      <d:write/>
     </d:privilege>
     <d:privilege>
      <d:write-acl/>
     </d:privilege>
     <d:privilege>
      <d:write-properties/>
     </d:privilege>
     <d:privilege>
      <d:write-content/>
     </d:privilege>
     <d:privilege>
      <d:bind/>
     </d:privilege>
     <d:privilege>
      <d:unbind/>
     </d:privilege>
     <d:privilege>
      <d:unlock/>
     </d:privilege>
     <d:privilege>
      <d:read/>
     </d:privilege>
     <d:privilege>
      <d:read-acl/>
     </d:privilege>
     <d:privilege>
      <d:read-current-user-privilege-set/>
     </d:privilege>
    </d:current-user-privilege-set>
   </d:prop>
   <d:status>HTTP/1.1 200 OK</d:status>
  </d:propstat>
  <d:propstat>
   <d:prop>
    <d:displayname/>
    <card:addressbook-description/>
    <card:supported-address-data/>
    <cal:calendar-description/>
    <x1:calendar-color xmlns:x1="http://apple.com/ns/ical/"/>
    <cal:supported-calendar-component-set/>
   </d:prop>
   <d:status>HTTP/1.1 404 Not Found</d:status>
  </d:propstat>
 </d:response>
 <d:response>
  <d:href>/remote.php/dav/addressbooks/users/my_user_name/contacts/</d:href>
  <d:propstat>
   <d:prop>
    <d:resourcetype>
     <d:collection/>
     <card:addressbook/>
    </d:resourcetype>
    <d:current-user-privilege-set>
     <d:privilege>
      <d:write/>
     </d:privilege>
     <d:privilege>
      <d:write-acl/>
     </d:privilege>
     <d:privilege>
      <d:write-properties/>
     </d:privilege>
     <d:privilege>
      <d:write-content/>
     </d:privilege>
     <d:privilege>
      <d:bind/>
     </d:privilege>
     <d:privilege>
      <d:unbind/>
     </d:privilege>
     <d:privilege>
      <d:unlock/>
     </d:privilege>
     <d:privilege>
      <d:read/>
     </d:privilege>
     <d:privilege>
      <d:read-acl/>
     </d:privilege>
     <d:privilege>
      <d:read-current-user-privilege-set/>
     </d:privilege>
    </d:current-user-privilege-set>
    <d:displayname>Contacts</d:displayname>
    <card:addressbook-description></card:addressbook-description>
    <card:supported-address-data>
     <card:address-data-type content-type="text/vcard" version="3.0"/>
     <card:address-data-type content-type="text/vcard" version="4.0"/>
     <card:address-data-type content-type="application/vcard+json" version="4.0"/>
    </card:supported-address-data>
   </d:prop>
   <d:status>HTTP/1.1 200 OK</d:status>
  </d:propstat>
  <d:propstat>
   <d:prop>
    <cal:calendar-description/>
    <x1:calendar-color xmlns:x1="http://apple.com/ns/ical/"/>
    <cal:supported-calendar-component-set/>
   </d:prop>
   <d:status>HTTP/1.1 404 Not Found</d:status>
  </d:propstat>
 </d:response>
</d:multistatus>

2016-08-16 15:47:46 3 [HttpClient$1] <-- END HTTP (3148-byte body)
2016-08-16 15:47:46 3 [dav4android.DavResource] Received <response> for https://my_ip/remote.php/dav/addressbooks/users/my_user_name/
	PARAMETER #1 = [displayname(DAV:): null, calendar-description(urn:ietf:params:xml:ns:caldav): null, addressbook-description(urn:ietf:params:xml:ns:carddav): null, current-user-privilege-set(DAV:): [read/write], calendar-color(http://apple.com/ns/ical/): null, supported-calendar-component-set(urn:ietf:params:xml:ns:caldav): null, resourcetype(DAV:): ResourceType(types=[collection(DAV:)]), supported-address-data(urn:ietf:params:xml:ns:carddav): null]
2016-08-16 15:47:46 3 [dav4android.DavResource] Received <response> for https://my_ip/remote.php/dav/addressbooks/users/my_user_name/contacts/
	PARAMETER #1 = [calendar-description(urn:ietf:params:xml:ns:caldav): null, calendar-color(http://apple.com/ns/ical/): null, current-user-privilege-set(DAV:): [read/write], resourcetype(DAV:): ResourceType(types=[collection(DAV:), addressbook(urn:ietf:params:xml:ns:carddav)]), displayname(DAV:): DisplayName(displayName=Contacts), supported-address-data(urn:ietf:params:xml:ns:carddav): at.bitfire.dav4android.property.SupportedAddressData@17267922, addressbook-description(urn:ietf:params:xml:ns:carddav): AddressbookDescription(description=null), supported-calendar-component-set(urn:ietf:params:xml:ns:caldav): null]
2016-08-16 15:47:46 3 [DavService$RefreshCollections] Found collection
	PARAMETER #1 = CollectionInfo(id=0, serviceID=null, type=ADDRESS_BOOK, url=https://my_ip/remote.php/dav/addressbooks/users/my_user_name/contacts/, readOnly=false, displayName=Contacts, description=null, color=null, timeZone=null, supportsVEVENT=null, supportsVTODO=null, selected=false, confirmed=true)
2016-08-16 15:47:46 3 [DavService$RefreshCollections] Found collection
	PARAMETER #1 = CollectionInfo(id=0, serviceID=null, type=null, url=https://my_ip/remote.php/dav/addressbooks/users/my_user_name/, readOnly=false, displayName=null, description=null, color=null, timeZone=null, supportsVEVENT=null, supportsVTODO=null, selected=false, confirmed=true)
2016-08-16 15:47:46 3 [DavService$RefreshCollections] Listing home set https://my_ip/remote.php/dav/addressbooks/groups/admin/
2016-08-16 15:47:46 3 [HttpClient$1] --> PROPFIND https://my_ip/remote.php/dav/addressbooks/groups/admin/ http/1.1
2016-08-16 15:47:46 3 [HttpClient$1] Content-Type: application/xml; charset=utf-8
2016-08-16 15:47:46 3 [HttpClient$1] Content-Length: 422
2016-08-16 15:47:46 3 [HttpClient$1] Depth: 1
2016-08-16 15:47:46 3 [HttpClient$1] 
2016-08-16 15:47:46 3 [HttpClient$1] <?xml version='1.0' encoding='UTF-8' ?><propfind xmlns="DAV:" xmlns:CAL="urn:ietf:params:xml:ns:caldav" xmlns:CARD="urn:ietf:params:xml:ns:carddav"><prop><resourcetype /><current-user-privilege-set /><displayname /><CARD:addressbook-description /><CARD:supported-address-data /><CAL:calendar-description /><n0:calendar-color xmlns:n0="http://apple.com/ns/ical/" /><CAL:supported-calendar-component-set /></prop></propfind>
2016-08-16 15:47:46 3 [HttpClient$1] --> END PROPFIND (422-byte body)
2016-08-16 15:47:46 3 [dav4android.BasicDigestAuthHandler] Adding Basic authorization header for https://my_ip/remote.php/dav/addressbooks/groups/admin/
2016-08-16 15:47:46 3 [HttpClient$1] <-- 404 Not Found https://my_ip/remote.php/dav/addressbooks/groups/admin/ (598ms)
2016-08-16 15:47:46 3 [HttpClient$1] Date: Tue, 16 Aug 2016 13:47:46 GMT
2016-08-16 15:47:46 3 [HttpClient$1] Server: Apache/2.2.22 (Debian)
2016-08-16 15:47:46 3 [HttpClient$1] Strict-Transport-Security: max-age=15768000; includeSubDomains; preload
2016-08-16 15:47:46 3 [HttpClient$1] X-Powered-By: PHP/5.4.45-0+deb7u4
2016-08-16 15:47:46 3 [HttpClient$1] Expires: Thu, 19 Nov 1981 08:52:00 GMT
2016-08-16 15:47:46 3 [HttpClient$1] Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
2016-08-16 15:47:46 3 [HttpClient$1] Pragma: no-cache
2016-08-16 15:47:46 3 [HttpClient$1] Content-Security-Policy: default-src 'none';
2016-08-16 15:47:46 3 [HttpClient$1] Set-Cookie: oc_username=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; secure; httponly
2016-08-16 15:47:46 3 [HttpClient$1] Set-Cookie: oc_token=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; secure; httponly
2016-08-16 15:47:46 3 [HttpClient$1] Set-Cookie: oc_remember_login=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; secure; httponly
2016-08-16 15:47:46 3 [HttpClient$1] Set-Cookie: oc_username=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/; secure; httponly
2016-08-16 15:47:46 3 [HttpClient$1] Set-Cookie: oc_token=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/; secure; httponly
2016-08-16 15:47:46 3 [HttpClient$1] Set-Cookie: oc_remember_login=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/; secure; httponly
2016-08-16 15:47:46 3 [HttpClient$1] Set-Cookie: oc8241418ed0=c0q0ifsccg4aubebkbo7v535a1; path=/; secure; HttpOnly
2016-08-16 15:47:46 3 [HttpClient$1] Set-Cookie: oc8241418ed0=bsp7pacmp152rc3836q1jh7st5; path=/; secure; HttpOnly
2016-08-16 15:47:46 3 [HttpClient$1] Set-Cookie: cookie_test=test; expires=Tue, 16-Aug-2016 14:47:46 GMT
2016-08-16 15:47:46 3 [HttpClient$1] X-Content-Type-Options: nosniff
2016-08-16 15:47:46 3 [HttpClient$1] X-XSS-Protection: 1; mode=block
2016-08-16 15:47:46 3 [HttpClient$1] X-Robots-Tag: none
2016-08-16 15:47:46 3 [HttpClient$1] X-Frame-Options: SAMEORIGIN
2016-08-16 15:47:46 3 [HttpClient$1] X-Download-Options: noopen
2016-08-16 15:47:46 3 [HttpClient$1] X-Permitted-Cross-Domain-Policies: none
2016-08-16 15:47:46 3 [HttpClient$1] Content-Length: 232
2016-08-16 15:47:46 3 [HttpClient$1] Keep-Alive: timeout=5, max=97
2016-08-16 15:47:46 3 [HttpClient$1] Connection: Keep-Alive
2016-08-16 15:47:46 3 [HttpClient$1] Content-Type: application/xml; charset=utf-8
2016-08-16 15:47:46 3 [HttpClient$1] 
2016-08-16 15:47:46 3 [HttpClient$1] <?xml version="1.0" encoding="utf-8"?>
<d:error xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
  <s:exception>Sabre\DAV\Exception\NotFound</s:exception>
  <s:message>File not found: groups in 'addressbooks'</s:message>
</d:error>

2016-08-16 15:47:46 3 [HttpClient$1] <-- END HTTP (232-byte body)
2016-08-16 15:47:46 3 [DavService$RefreshCollections] Saving collection
	PARAMETER #1 = description=null displayName=Contacts sync=1 timezone=null color=null readOnly=0 url=https://my_ip/remote.php/dav/addressbooks/users/my_user_name/contacts/

rfc2822

Hello,

Thanks for your report. Please provide steps to reproduce, debug info and verbose logs of the synchronization (not the resource detection).

fastidio

steps:

installed davdroid from f-droid.
apps - permission --> all granted
added my account: url, username, password
verified account has been added
added all contacts/calendars to sync
connected over my vpn with openvpn
enabled miui sync button
pushed "sync now", just to force)
google & aCalDav sync, DavDroid not. Even after hours...

log is in the first post.

debug info ("ip" is my numerical ip, "my_username" is my name):

SOFTWARE INFORMATION
DAVdroid version: 1.2.3-ose (112) Fri Aug 12 08:14:08 CEST 2016
Installed from: org.fdroid.fdroid
JB Workaround installed: no

CONFIGURATION
System-wide synchronization: manually
Account: my_username.owncloud
Address book sync. interval: 240 min
Calendar sync. interval: 240 min
OpenTasks sync. interval: —
WiFi only: false
[CardDAV] Contact group method: GROUP_VCARDS
RFC 6868 encoding: true
[CalDAV] Time range (past days): 90
Manage calendar colors: true

SQLITE DUMP
android_metadata
| locale |
| it_IT |
----------
settings
| setting | value |
| hint_OpenTasksNotInstalled | 0 |
| logToExternalStorage | 1 |
----------
services
| _id | accountName | service | principal |
| 1 | my_username.owncloud | carddav | https://ip/remote.php/dav/principals/users/my_username/ |
| 2 | my_username.owncloud | caldav | https://ip/remote.php/dav/principals/users/my_username/ |
----------
sqlite_sequence
| name | seq |
| services | 2 |
| homesets | 3 |
| collections | 7 |
----------
homesets
| _id | serviceID | url |
| 1 | 2 | https://ip/remote.php/dav/calendars/my_username/ |
| 3 | 1 | https://ip/remote.php/dav/addressbooks/users/my_username/ |
----------
collections
| _id | serviceID | url | readOnly | displayName | description | color | timezone | supportsVEVENT | supportsVTODO | sync |
| 1 | 2 | https://ip/remote.php/dav/calendars/my_username/contact_birthdays/ | 1 | Contact birthdays | <null> | -54 | <null> | 1 | 1 | 1 |
| 2 | 2 | https://ip/remote.php/dav/calendars/my_username/i/ | 0 | i | i | -4989844 | <null> | 1 | 1 | 1 |
| 3 | 2 | https://ip/remote.php/dav/calendars/my_username/d/ | 0 | d | d | -32944 | <null> | 1 | 1 | 1 |
| 4 | 2 | https://ip/remote.php/dav/calendars/my_username/work/ | 0 | work | <null> | -8638004 | <null> | 1 | 1 | 1 |
| 5 | 2 | https://ip/remote.php/dav/calendars/my_username/defaultcalendar/ | 0 | calendario | calendario | -6306073 | <null> | 1 | 1 | 1 |
| 7 | 1 | https://ip/remote.php/dav/addressbooks/users/my_username/contacts/ | 0 | Contacts | <null> | <null> | <null> | <null> | <null> | 1 |
----------

SYSTEM INFORMATION
Android version: 5.1.1 (LMY47V)
Device: Xiaomi Mi-4c (libra)

rfc2822

System-wide synchronization: manually

Auto-sync is disabled for the whole system. Don't know where the option is for your device. Often there's a Sync on/off button in the top system bar, and it should be in Android Settings / Accounts / Synchronize data automatically or something like that.

Please try with enabled sync for your device.

fastidio

Of course. As you can read at step 7 of previous post I enabled the auto-sync android button. In fact everything syncs except DavDroid

rfc2822

@fastidio Then I don't have any idea. Synchronization is not triggered by DAVdroid, but DAVdroid is only called by the system. What happens if you go into the DAVdroid account in Android settings / Accounts? Can you force synchronization there?

Maybe some of Miui's privacy settings, see no calendars visible, no bugs, no notifications?

fastidio

I solved.
DavDroid must be enabled as startup app under

security>permissions>autostart

rfc2822

@fastidio Thanks for sharing your solution. (Whatever a "startup app" is; DAVdroid doesn't require any autostart permissions because it's launched by Android for synchronization.)

fastidio

well, I understand... you should discuss it with miui developers...

nebulon

Just want to confirm that enabling DavDroid as autostart app resolves this problem for me as well. Prior to doing so, I saw this in the adb logs. I don't know if this is related though.

E/SyncManager( 1056): Bind attempt failed - target: ComponentInfo{at.bitfire.davdroid/at.bitfire.davdroid.syncadapter.CalendarsSyncAdapterService}

rfc2822

I have created a new FAQ: How do I enable DAVdroid synchronization on Xiaomi MIUI?

We do not have a MIUI device, so would it be possible that you post a screenshot of the Security / Permissions / Autostart activity so that we can add it to the FAQ article?

nerf

0_1476463136730_Screenshot_2016-10-14-17-39-17-274_com.miui.securitycenter.png
Open 'Security', select 'Permissions'.
0_1476463248358_Screenshot_2016-10-14-17-39-24-167_com.miui.securitycenter.png
Select Autostart.
0_1476463318076_Screenshot_2016-10-14-17-41-47-193_com.miui.securitycenter.png
Toggle autostart on for desired app(s). I found that I needed to do the same thing with OpenTasks for tasks synchronization to work.

Battery settings:
0_1476463509209_copyScreenshot_2016-10-14-17-43-41-701_com.android.settings.png
Swipe down from top of screen and select cog, search for battery, select 'Manage apps battery usage'.
0_1476463551379_Screenshot_2016-10-14-17-43-49-533_com.miui.powerkeeper.png
Select 'choose apps'
0_1476463613566_Screenshot_2016-10-14-17-44-12-392_com.miui.powerkeeper.png
Select desired app(s).
0_1476463680398_Screenshot_2016-10-14-18-47-43-538_com.miui.powerkeeper.png
And set 'no restrictions'.

devvv4ever

Thanks to a very nice person we met at Nextcloud conf 2017 we were able to personally take some important screenshots from a Xiaomi device and managed to find out what you need to do to get DAVdroid working with Xiaomi devices. Please have a look at these screenshots and on the colorized sections (stuff that belongs together is colored (orange, blue and pink) the same way).

Don't forget to also remove your battery restrictions (if you want DAVdroid to sync automatically):