If you formatted your iPhone to factory defaults or accidentally removed your Gmail account from your device, you can easily readd Google to your smartphone and resync your data in minutes. If your Gmail account is still active in your device, but you don't see any of your Google contacts or events in the Contacts or Calendars app, or you're not receiving any new email messages in the Mail app, you may need to change your synchronization settings.

Set Up Your Account

Step 1

Touch the "Mail, Contacts, Calendars" option in the Settings app and then touch "Add Account."

Step 2

Choose "Google" from the list of providers, and then enter your display name, email address, password and description into the appropriate fields.

Step 3

Press "Next" to create your account and then toggle "Mail," "Contacts" or "Calendars" to "On."

Step 4

Press "Save" to synchronize your iPhone with your Google account.

Set Up Syncing

Step 1

Touch the "Mail, Contacts, Calendars" option in the Settings app and then select "Gmail" from under Accounts.

Step 2

Toggle "Mail," "Contacts" or "Calendars" to "On," according to your preferences.

Step 3

Open the Mail, Contacts or Calendar app on your iPhone to download your email messages, contacts or calendar events from Google.