1. vvale's Avatar
    This is going to be a long post...

    I have a Lumia 620 with Windows Phone 8.
    a) The phone is not able to sync contacts with one Gmail account only. Mail and calendar for the same account are synced without problems. Other Gmail accounts sync without problems (contacts and all the other stuff)
    b) Windows Phone does not display any error message while syncing, it simply does not sync contacts for the affected Gmail account
    c) The lack of synchronization is bidirectional: if I insert a new contact on the phone, it does not appear in the Gmail contacts
    d) In order to test if this was a problem with the number of contacts, I deleted from the affected Gmail account all of the contacts. I have then inserted one test contact. The problem still persists.
    e) I'm not using the "exchange" contact option (Google Sync) as it not supported any more by Google. I'm using the CardDav protocol.
    f) I also have an old Lumia 610 with Windows Phone 7.5. The phone syncs perfectly with the affected Gmail account, by using Google Sync (exchange).
    g) I even reset the phone to its default factory settings, but the problem is still there

    Thanks for any help
    Last edited by vvale; 03-30-2014 at 03:38 PM.
    03-30-2014 02:08 PM
  2. ttsoldier's Avatar
    This is going to be a long post...

    I have a Lumia 620 with Windows Phone 8.1.
    03-30-2014 03:00 PM
  3. vvale's Avatar
    8, not 8.1
    03-30-2014 03:40 PM
  4. Brad Peng's Avatar
    I had the same issue as yours. I followed the advice by exporting contacts then delete all contact under Google and then re-import the contacts. It worked for 2 months, and then all the sudden yesterday, ALL MY GOGGLE CONTACTS are GONE! Not one of them left on the phone. I double checked it by filter the contact.. and NOTHING! When I tried to re-sync the contact, it just says, there is a problem syncing... End of it.

    Now I wonder if I should do the same exercise over again and see what happens?
    04-02-2014 10:13 AM
  5. Uff182's Avatar
    You can find the reason here: honestly, this what happened is quite unbelievable. Not a very smart move from Google.
    04-02-2014 03:52 PM
  6. georgito007's Avatar
    Yap..same problems today...tried deleting Google account,renewed all over again and sometimes sync.only some contacts...about 20% of all..
    04-02-2014 04:27 PM
  7. Neil Calvert's Avatar
    Go to this site https://support.google.com/mail/answer/1173270?hl=en and create an 'Application Specific Password' by clicking 'Authorizing applications & sites page' this will be the password you enter when asked for it when trying to sync. You will only have to enter it once, and\or whenever you change your email password.
    05-28-2014 01:06 PM
  8. Shobhit_Jain's Avatar
    Facing the exact same problem on lumia 640XL. Please let me know if you have found the solution. Thanks
    09-27-2016 06:43 AM
  9. Matjaz Erj's Avatar
    Yestrday made HR on Lumia 950XL, now gmail contacts not want to sync.
    10-17-2016 04:16 AM

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