To synchronise your contact with gmail:

To synchronise your contact with gmail:

Menu/Settings/Configuration/Personal configuration settings: 

Options menu select Add new.

Select Synchronisation and enter the following values:

Account name: Google Sync (or any other name of your choice)

Server address: https://m.google.com/syncml

  User name: Your Google account username, 

  e.g.: you@gmail.com

  Password: Your Google account password

Select Contacts database: Enter contacts into the Database address field:

  User name: Your Google account username, e.g.: you@gmail.com

  Password: Your Google account password

  Ensure that Calendar database and Notes database fields are empty.

  Ensure that Use preferred access point is set to Yes

  Select back to exit this screen and save your settings.

  Account name: Google Sync and ensure with the option that it is Activate Menu/Contacts/Synchronise

  When asked Synchronize selected data with Google Sync? select Yes

Hope it will work for you!

It was fine with my C3 nokia phone.

Remind: in gmail contact you can import csv or vcard file. And moreover, you can also export to backup (or whatever) your contacts.