remove some accounts, such as the first account you signed into on the mobile
phone. If you attempt to remove certain accounts, all personal information associated
with it will be deleted.
You can only remove the first Google Account by resetting the phone to factory
1. On the Accounts & sync settings screen, touch the account to be deleted.
2. Touch Sign Out.
3. Confirm that you want to remove the account.
10.2 Customizing Your Account
You can configure background data use and synchronization options for all the
applications on your phone. You can also configure what kind of data you synchronize
for each account.
For some accounts, synchronization is bi-directional; changes that you make to the
information on your mobile phone are made to the copy of that information on the
web. Some accounts support only one-way synchronization; the information on your
mobile phone is read-only.
10.2.1 Configuring General Synchronization Settings
On the Accounts & sync settings screen, do the following:
• Select or clear the Background data check box to control whether applications
and services can transmit data when you are not working with them directly (that is,
when they are running in the background).
If you clear this option, Gmail stops receiving new mails, Calendar stops
synchronizing events, and so on, until you refresh them.
• Select or clear the Auto-sync check box to control whether changes you make to
information on the phone or on the web are automatically synchronized with each
For example, when this option is selected, changes that you make in Contacts
on the phone are automatically made in Google Contacts on the web.