Thanks for your help and your app 
Here are the correct logs :
E/WifiService( 517): Invoking mWifiStateMachine.setWifiEnabled
E/FWKEXT ( 517): Enter GetCurrentOP
...
...
E/FWKEXT ( 517): Enter GetCurrentOP
I/davdroid.DavSyncAdapter( 5528): Performing sync for authority com.android.calendar
D/davdroid.DavSyncAdapter( 5528): Creating new DavHttpClient
V/davdroid.TlsSniSocketFactory( 5528): Setting allowed TLS protocols: TLSv1, TLSv1.1, TLSv1.2
V/davdroid.TlsSniSocketFactory( 5528): Setting allowed TLS ciphers: TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, TLS_DHE_RSA_WITH_AES_128_CBC_SHA, TLS_ECDH_RSA_WITH_AES_128_CBC_SHA, TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA, SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA, SSL_RSA_EXPORT_WITH_RC4_40_MD5, TLS_DHE_RSA_WITH_AES_256_CBC_SHA, SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDH_RSA_WITH_AES_256_CBC_SHA, SSL_RSA_WITH_RC4_128_SHA, TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA, SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, SSL_DHE_DSS_WITH_DES_CBC_SHA, TLS_ECDHE_RSA_WITH_RC4_128_SHA, TLS_ECDH_ECDSA_WITH_RC4_128_SHA, TLS_DHE_DSS_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA, SSL_DHE_RSA_WITH_DES_CBC_SHA, TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_256_CBC_SHA, SSL_RSA_WITH_DES_CBC_SHA, TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDH_RSA_WITH_RC4_128_SHA, TLS_EMPTY_RENEGOTIATION_INFO_SCSV, SSL_RSA_EXPORT_WITH_DES40_CBC_SHA, TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, SSL_RSA_WITH_RC4_128_MD5, TLS_DHE_DSS_WITH_AES_128_CBC_SHA, SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA, SSL_RSA_WITH_3DES_EDE_CBC_SHA
I/davdroid.DavHttpClient( 5528): Wire logging active, disabling HTTP compression
D/davdroid.DavSyncAdapter( 5528): Server supports VCard version 3.0
V/davdroid.URIUtils( 5528): Normalized URL https://xxx/owncloud/remote.php/caldav/calendars/Philippe/xxx/ -> https://xxx/owncloud/remote.php/caldav/calendars/Philippe/xxx/
D/davdroid.WebDavResource( 5528): Using preemptive authentication (not compatible with Digest auth)
I/davdroid.SyncManager( 5528): Remotely removing 0 deleted resource(s) (if not changed)
I/davdroid.SyncManager( 5528): Uploading 5 new resource(s) (if not existing)
V/davdroid.URIUtils( 5528): Normalized URL 20150619T080121Z-5528_1f8899417136f4a0.ics -> 20150619T080121Z-5528_1f8899417136f4a0.ics
D/HttpClient( 5528): Re-using cached 'basic' auth scheme for https://xxx:443
D/HttpClient( 5528): Connection request: [route: HttpRoute[{s}->https://xxx:443]][total kept alive: 0; route allocated: 0 of 2; total allocated: 0 of 3]
D/HttpClient( 5528): Connection leased: [id: 0][route: HttpRoute[{s}->https://xxx:443]][total kept alive: 0; route allocated: 1 of 2; total allocated: 1 of 3]
D/HttpClient( 5528): Opening connection HttpRoute[{s}->https://xxx:443]
D/HttpClient( 5528): Connecting to xxx/xx.xx.xx.xx:443
D/HttpClient( 5528): Connecting socket to xxx/xx.xx.xx.xx:443 with timeout 20000
D/HttpClient( 5528): Enabled protocols: [TLSv1, TLSv1.1, TLSv1.2]
D/HttpClient( 5528): Enabled cipher suites:[TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, TLS_DHE_RSA_WITH_AES_128_CBC_SHA, TLS_ECDH_RSA_WITH_AES_128_CBC_SHA, TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA, SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA, SSL_RSA_EXPORT_WITH_RC4_40_MD5, TLS_DHE_RSA_WITH_AES_256_CBC_SHA, SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDH_RSA_WITH_AES_256_CBC_SHA, SSL_RSA_WITH_RC4_128_SHA, TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA, SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, SSL_DHE_DSS_WITH_DES_CBC_SHA, TLS_ECDHE_RSA_WITH_RC4_128_SHA, TLS_ECDH_ECDSA_WITH_RC4_128_SHA, TLS_DHE_DSS_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA, SSL_DHE_RSA_WITH_DES_CBC_SHA, TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_256_CBC_SHA, SSL_RSA_WITH_DES_CBC_SHA, TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDH_RSA_WITH_RC4_128_SHA, TLS_EMPTY_RENEGOTIATION_INFO_SCSV, SSL_RSA_EXPORT_WITH_DES40_CBC_SHA, TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, SSL_RSA_WITH_RC4_128_MD5, TLS_DHE_DSS_WITH_AES_128_CBC_SHA, SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA, SSL_RSA_WITH_3DES_EDE_CBC_SHA]
D/HttpClient( 5528): Enabling SNI for xxx
D/HttpClient( 5528): Starting handshake
E/NativeCrypto( 5528): ssl=0x5bc79738 cert_verify_callback x509_store_ctx=0x5da96ab0 arg=0x0
E/NativeCrypto( 5528): ssl=0x5bc79738 cert_verify_callback calling verifyCertificateChain authMethod=ECDHE_RSA
D/HttpClient( 5528): Secure session established
D/HttpClient( 5528): negotiated protocol: TLSv1.2
D/HttpClient( 5528): negotiated cipher suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
D/HttpClient( 5528): peer principal: CN=xxx, OU=Gandi Standard SSL, OU=Domain Control Validated
D/HttpClient( 5528): peer alternative names: [xxx, xxx]
D/HttpClient( 5528): issuer principal: CN=Gandi Standard SSL CA 2, O=Gandi, L=Paris, ST=Paris, C=FR
D/HttpClient( 5528): Connection established 192.168.0.16:49420<->xx.xx.xx.xx:443
D/HttpClient( 5528): Executing request PUT /owncloud/remote.php/caldav/calendars/xxx/xxx/20150619T080121Z-5528_1f8899417136f4a0.ics HTTP/1.1
D/HttpClient( 5528): Target auth state: CHALLENGED
D/HttpClient( 5528): Proxy auth state: UNCHALLENGED
D/Wire ( 5528): http-outgoing-0 >> "PUT /owncloud/remote.php/caldav/calendars/xxx/xxx/20150619T080121Z-5528_1f8899417136f4a0.ics HTTP/1.1[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "If-None-Match: *[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "Content-Type: text/calendar[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "Content-Length: 4204[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "Host: forceistrongwithisone.fr[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "Connection: Keep-Alive[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "User-Agent: DAVdroid/0.7.5[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "Authorization: Basic xxx[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "BEGIN:VCALENDAR[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "VERSION:2.0[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "PRODID:-//bitfire web engineering//DAVdroid 0.7.5 (ical4j 1.0.x)//EN[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "BEGIN:VEVENT[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "DTSTAMP:20150619T080122Z[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "UID:20150619T080121Z-5528@1f8899417136f4a0[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "DTSTART;TZID=Europe/Paris:20150618T150041[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "DTEND;TZID=Europe/Paris:20150618T153041[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "SUMMARY:MOISERIE - M VANTAL et SEDA et CCRCT - r[0xc3][0xa9]union [\r]annul[0xc3][0xa9]e et report[0xc3][0xa9]e [\r][\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "LOCATION:[0xc3][0xa0] la CCRCT[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "DESCRIPTION:Quand : jeudi 18 juin 2015 15:00-15:30 (UTC+01:0[\r]0) Bruxelles\\\, Copenhague\\\, Madrid\\\, Paris.\nEmplacement : [0xc3][0xa0] la CCRCT[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> " \n\n[\r]Remarque : le d[0xc3][0xa9]calage GMT ci-dessus ne tient pas compte des r[0xc3][0xa9]glages de[\r] l'heure d'[0xc3][0xa9]t[0xc3][0xa9].\n\n*~*~*~*~*~*~*~*~*~*[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "STATUS:CONFIRMED[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "ORGANIZER:mailto:Agenda%20Philippe[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "LAST-MODIFIED:20150619T080122Z[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "END:VEVENT[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "BEGIN:VTIMEZONE[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZID:Europe/Paris[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZURL:http://tzurl.org/zoneinfo/Europe/Paris[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "X-LIC-LOCATION:Europe/Paris[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "BEGIN:DAYLIGHT[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETFROM:+0100[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETTO:+0200[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZNAME:CEST[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "DTSTART:19810329T020000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "END:DAYLIGHT[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "BEGIN:STANDARD[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETFROM:+0200[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETTO:+0100[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZNAME:CET[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "DTSTART:19961027T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "END:STANDARD[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "BEGIN:STANDARD[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETFROM:+000921[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETTO:+000921[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZNAME:PMT[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "DTSTART:18910315T000100[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:18910315T000100[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "END:STANDARD[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "BEGIN:STANDARD[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETFROM:+000921[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETTO:+0000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZNAME:WET[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "DTSTART:19110311T010100[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19110311T010100[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "END:STANDARD[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "BEGIN:DAYLIGHT[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETFROM:+0000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETTO:+0100[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZNAME:WEST[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "DTSTART:19160614T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19160614T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19170324T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19180309T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19190301T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19200214T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19210314T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19220325T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19230526T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19240329T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19250404T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19260417T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19270409T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19280414T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19290420T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19300412T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19310418T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19320402T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19330325T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19340407T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19350330T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19360418T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19370403T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19380326T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19390415T230000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19400225T020000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "END:DAYLIGHT[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "BEGIN:STANDARD[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETFROM:+0100[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETTO:+0000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZNAME:WET[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "DTSTART:19161002T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19161002T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19171008T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19181007T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19191006T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19201024T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19211026T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19221008T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19231007T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19241005T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19251004T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19261003T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19271002T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19281007T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19291006T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19301005T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19311004T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19321002T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19331008T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19341007T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19351006T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19361004T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19371003T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19381002T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19391119T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "END:STANDARD[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "BEGIN:DAYLIGHT[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETFROM:+0100[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETTO:+0200[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZNAME:CEST[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "DTSTART:19400615T000000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19400615T000000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19430329T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19440403T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19760328T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19770403T020000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19780402T020000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19790401T020000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19800406T020000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "END:DAYLIGHT[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "BEGIN:STANDARD[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETFROM:+0200[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETTO:+0100[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZNAME:CET[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "DTSTART:19421102T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19421102T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19431004T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19450916T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19760926T010000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19770925T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19781001T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19790930T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19800928T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19810927T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19820926T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19830925T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19840930T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19850929T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19860928T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19870927T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19880925T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19890924T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19900930T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19910929T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19920927T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19930926T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19940925T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19950924T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "END:STANDARD[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "BEGIN:DAYLIGHT[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETFROM:+0200[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETTO:+0200[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZNAME:WEMT[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "DTSTART:19440825T000000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19440825T000000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "END:DAYLIGHT[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "BEGIN:DAYLIGHT[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETFROM:+0200[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETTO:+0100[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZNAME:WEST[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "DTSTART:19441008T020000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19441008T020000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "END:DAYLIGHT[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "BEGIN:DAYLIGHT[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETFROM:+0100[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETTO:+0200[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZNAME:WEMT[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "DTSTART:19450402T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19450402T030000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "END:DAYLIGHT[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "BEGIN:STANDARD[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETFROM:+0100[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZOFFSETTO:+0100[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "TZNAME:CET[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "DTSTART:19770101T000000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "RDATE:19770101T000000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "END:STANDARD[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "END:VTIMEZONE[\r][\n]"
D/Wire ( 5528): http-outgoing-0 >> "END:VCALENDAR[\r][\n]"
D/Wire ( 5528): http-outgoing-0 << "HTTP/1.1 415 Unsupported Media Type[\r][\n]"
D/Wire ( 5528): http-outgoing-0 << "Date: Fri, 19 Jun 2015 08:01:24 GMT[\r][\n]"
D/Wire ( 5528): http-outgoing-0 << "Server: Apache[\r][\n]"
D/Wire ( 5528): http-outgoing-0 << "Expires: Thu, 19 Nov 1981 08:52:00 GMT[\r][\n]"
D/Wire ( 5528): http-outgoing-0 << "Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0[\r][\n]"
D/Wire ( 5528): http-outgoing-0 << "Pragma: no-cache[\r][\n]"
D/Wire ( 5528): http-outgoing-0 << "Strict-Transport-Security: max-age=31536000[\r][\n]"
D/Wire ( 5528): http-outgoing-0 << "X-XSS-Protection: 1; mode=block[\r][\n]"
D/Wire ( 5528): http-outgoing-0 << "X-Content-Type-Options: nosniff[\r][\n]"
D/Wire ( 5528): http-outgoing-0 << "X-Frame-Options: Sameorigin[\r][\n]"
D/Wire ( 5528): http-outgoing-0 << "Content-Security-Policy: default-src 'self'; script-src 'self' 'unsafe-eval'; style-src 'self' 'unsafe-inline'; frame-src *; img-src *; font-src 'self' data:; media-src *[\r][\n]"
D/Wire ( 5528): http-outgoing-0 << "Set-Cookie: oc0a78284d2c=ao3fe7bl2kslqvrog3phsli8q4; path=/owncloud; secure; HttpOnly[\r][\n]"
D/Wire ( 5528): http-outgoing-0 << "Vary: Accept-Encoding[\r][\n]"
D/Wire ( 5528): http-outgoing-0 << "Strict-Transport-Security: max-age=31536000; includeSubDomains[\r][\n]"
D/Wire ( 5528): http-outgoing-0 << "Keep-Alive: timeout=5, max=100[\r][\n]"
D/Wire ( 5528): http-outgoing-0 << "Connection: Keep-Alive[\r][\n]"
D/Wire ( 5528): http-outgoing-0 << "Transfer-Encoding: chunked[\r][\n]"
D/Wire ( 5528): http-outgoing-0 << "Content-Type: application/xml; charset=utf-8[\r][\n]"
D/Wire ( 5528): http-outgoing-0 << "[\r][\n]"
D/HttpClient( 5528): Connection can be kept alive for 5000 MILLISECONDS
D/HttpClient( 5528): Authentication succeeded
D/HttpClient( 5528): http-outgoing-0: Shutdown connection
D/HttpClient( 5528): Connection discarded
D/HttpClient( 5528): http-outgoing-0: Close connection
D/HttpClient( 5528): Connection released: [id: 0][route: HttpRoute[{s}->https://xxx:443]][total kept alive: 0; route allocated: 0 of 2; total allocated: 0 of 3]
E/davdroid.DavSyncAdapter( 5528): Hard HTTP error 415
E/davdroid.DavSyncAdapter( 5528): at.bitfire.davdroid.webdav.HttpException: 415 Unsupported Media Type
E/davdroid.DavSyncAdapter( 5528): at at.bitfire.davdroid.webdav.WebDavResource.checkResponse(WebDavResource.java:419)
E/davdroid.DavSyncAdapter( 5528): at at.bitfire.davdroid.webdav.WebDavResource.checkResponse(WebDavResource.java:393)
E/davdroid.DavSyncAdapter( 5528): at at.bitfire.davdroid.webdav.WebDavResource.put(WebDavResource.java:370)
E/davdroid.DavSyncAdapter( 5528): at at.bitfire.davdroid.resource.RemoteCollection.add(RemoteCollection.java:155)
E/davdroid.DavSyncAdapter( 5528): at at.bitfire.davdroid.syncadapter.SyncManager.pushNew(SyncManager.java:143)
E/davdroid.DavSyncAdapter( 5528): at at.bitfire.davdroid.syncadapter.SyncManager.synchronize(SyncManager.java:49)
E/davdroid.DavSyncAdapter( 5528): at at.bitfire.davdroid.syncadapter.DavSyncAdapter.onPerformSync(DavSyncAdapter.java:146)
E/davdroid.DavSyncAdapter( 5528): at android.content.AbstractThreadedSyncAdapter$SyncThread.run(AbstractThreadedSyncAdapter.java:254)
I/davdroid.DavSyncAdapter( 5528): Sync complete for com.android.calendar
E/FWKEXT ( 517): Enter GetCurrentOP
...
...
E/FWKEXT ( 517): Enter GetCurrentOP
D/davdroid.DavSyncAdapter( 5528): Closing httpClient
E/FWKEXT ( 517): Enter GetCurrentOP
D/HttpClient( 5528): Connection manager is shutting down
D/HttpClient( 5528): Connection manager shut down
E/FWKEXT ( 517): Enter GetCurrentOP
...
...
E/FWKEXT ( 517): Enter GetCurrentOP
E/ATCIJ ( 5463): Couldn't find 'atci-serv-fw' socket after 16 times, continuing to retry silently
E/FWKEXT ( 517): Enter GetCurrentOP
...
...
E/FWKEXT ( 517): Enter GetCurrentOP
I don’t know about the content type. As I said it, I was able to use Davdroid with the same Owncloud account some months before (after that, I left it unsynced -cert error- for some time and only reset it a few days ago).
I tried with evolution, it works.
I use owncloud 6 (ooops, I just realize I forgot to update it, I’ll do it right now :))
I can create a test account, yeah.