2F. Calendar & Tools 115 Calendar / ToolsTo hide the onscreen clock:1. Press and tap > .2. Press and tap Hide clock.CalculatorYour device comes with a built-in calculator.1. Press and tap > (Calculator).2. Enter numbers using your keyboard or by tappingan onscreen key.3. Press and hold on the QWERTY keyboard toclear all numbers.– or –Touch and hold to clear all numbers. Tap C (CLEAR) to clear all numbers. Orient the device into Landscape mode to viewand use the Advanced panel (left) to access moreadvanced features such as sin (Sine), cos(Cosine), and tan (Tangent), indicated by blueonscreen buttons.Updating Your Device FirmwareYou can update your device's software using theUpdate Firmware option.Before Updating Your FirmwareUpdating your device firmware will erase all user datafrom your device. You must back up all criticalinformation before updating your device firmware.Back Up All Data Prior to UpdateTo back up your Gmail information:1. Press > and tap > Accounts &sync. (See “Synchronizing Accounts” on page 73.)2. Tap the Auto-sync option to enable the feature(checkmark). (See “Configuring DataSynchronization Settings” on page 195.)Note: These advanced panel features are also availablewhen the keyboard is opened in Landscape mode.SPH-D700.book Page 115 Tuesday, August 17, 2010 11:14 AM