Sony Ericsson is a U.K.-based cell phone manufacturer, jointly owned by the Japanese Sony Corporation and the Finnish telecommunications company Ericsson. The company makes a range of cell phones under the Sony Ericsson brand, many of which are available on American networks like T-Mobile and AT&T. Most Sony Ericsson phones come with a built-in calculator application for working out quick equations, such as calculating a tip. You do not need to unlock a Sony Ericsson calculator feature--you simply need to access it from the phone menu.
Instructions
1. Press the menu button on the phone's keypad. The precise key will vary depending on your model of Sony Ericsson phone.
2. Scroll to and enter the "Extras" menu using the arrow keys.
3. Select "Calculator" from the list of applications. The calculator application will open.
4. Enter numbers using the number keys on your phone. Use the arrow keys to set details of the equation.
Tags: Sony Ericsson, arrow keys, calculator application