Whenever you wish to restore your factory setting on your android device, it is recommended that you are backing up your entire android device with some Android PC Suits.You can easily backup & synchronize your android device’s browsers or sync Google calendar with android. Here is the tips to sync Google account contacts to your android device with few easy steps.
See also : How to Merge Duplicate Contacts on Android
1.Go to setting menu option, from there go to Account & Sync menu.
2.Turn on the account & sync option at the top.
3.Now choose the respective account from where you wants to sync contacts to your android device.
4.Tick mark on the option you wants to sync to your device and it will start synchronizing from your Google account to your android device.
After synchronizing, it would synchronize few Google Contacts with email address from your gmail account also. However you can remove contacts without phone numbers from Phonebook easily.