Samsung SCH-A850BKVXAR - Manual (Page 110)

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ion 8
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4. Press to save the setting. The phone returns to Call
Sounds submenu.
Resetting Your Phone
Reset Phone returns all setup options to their factory
default.
1. In standby mode, press the Menu, use the right
navigation key to highlight Settings & Tools. Press
System. The System sub menus listed in the
display.
2. Press the Security, and enter the lock code. Press
Reset Phone. A prompt appears in the display
asking if you wish to restore default settings (except for
the Contacts).
3. Press No to return to the Security list
.