Google Contacts-> Need Data connection?

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I find that there are SIM Contacts, Phone Contacts, and Google Contacts.My plan is that my official contacts are Google Contacts.

Do I need to have a data connection to see them? I don't want to count on a data connection being always there.Not quite sure how to proceed on this.

I find that not all of my Google contacts are on the phone if I select "Google contacts" only for contacts. I don't see a 'Sync' opton either.

Any thoughts?

on my current android device all of my google contacts sync and stay on my device. Mine is set up differently as I only have one set of contacts, but you shouldnt need a data connection once they've all synced unless you make changes.

Thanks.

So what are the thoughts about the fact that I have (maybe only 1) contact/s that are in my Google contacts, but not on the phone.

[edit]
I clicked the search, and found the contact. But the contact is no in my list. Only contacts I have displaying are Google Contacts. Maybe one thing I might need to do to be sure I don't get it all confused, is delete them from SIM and phone. But not sure how to do that, and be sure I don't delete from Google Contacts.


[EDIT2]
Well not having any luck. I tried adding another account (my wife's), but that won't work. Because there is no selection to synch calendar only. You must sync email. Don't want her email.

Looks like I need to hard reset the phone So, my next order of business is to figure out how to backup everything, so I don't have to do all the config again. Of course, what I don't know is if the restore will just bring the problem back, assumint the hard rest fixes my isse. I'll create a new post on backup topic.