I bought Samsung Galaxy Note 3 (now with Kit Kat) about a year ago and used my Google account to sync contact, calendar, G-Mail, etc. Everything is working fine since I noticed contacts sync problem two weeks ago. Every time I make sync, Sync is currently experiencing problems. It will be back shortly. message appears. I only have around 260 contacts. I researched and tried some solutions. But sync problem still exists. Some websites suggest to clear data of Contact Storage and I did. Nothing become except all my contacts were gone from my phone. Sync still doesn't work. I hate to do Factory Reset for such problem. I have searched many questions like mine at here but I can't find any solutions. Any help is appreciated. Thanks in advance!