64 iQue ® M5 Operating InstructionsC USTOMIZING > C ONFIGURING BACKLIGHT AND POWER SETTINGSYou can also view information about device Certificates from system settings. A certificate is a file that helps you identify yourselfto secure networks (personal certificates) or helps you identify servers you may connect to (root certificates).To view certificates:1. Tap , Settings, and the System tab.2. Tap the Certificates icon. View your personal certificates. Tap the Root tab to view root certificates.3. To delete a certificate, tap and hold on a certificate in the list and choose Delete.Configuring Backlight and Power SettingsChanging Backlight and Power settings properly can help you save battery life! If you keep the backlight or your iQue M5 on forlong periods of time, you will use up battery power very quickly. Remember to turn off the backlight and your iQue M5 when youare not using them to save battery power.To change Backlight settings:1. Tap , Settings, the System tab, and the Backlight icon.2. From the Battery Power tab, tap the drop down menu to select how much time should pass before the backlight turns off when usingbattery power.3. Tap the External Power tab. Tap to check the box if you want the backlight to turn off when the device is run by external power (like yourautomotive cradle or your desk cradle). Tap to select how much time you want to elapse before the backlight turns off.4. Tap the Brightness tab. Choose the brightness level you want the backlight to have.Changing Backlight settings.To change Power settings:1. From the Backlight screen, tap the blue power link at the bottom of the screen.ORTap , Settings, the System tab, and then the Power icon.2. View the current battery power remaining.3. Tap the Wireless tab to turn wireless signals on or off.4. Tap the Advanced tab to turn off the device if idle. Choose a time from the drop-down menu. After the iQue M5 is idle for this amount oftime, the unit will turn off automatically.5. Tap the Sleep tab to wake up the device by pressing buttons or to enable GPS Standby mode.