LAUNCH X-431 V+ User’s Manual — Knowledge of X-431 V+122. Choose the desired sleep time.2.9.7 Set screen lockThis function is designed to lock the screen and buttons to avoid accidentaloperations while X-431 V+ keeps unattended.1. On the main menu screen, tap > All > Security > Screen lock.2. Choose the desired screen lock mode and follow the on-screen instructionsto finish your setting.2.9.8 Adjust the volumeThis option enables you to adjust the volume of the ringtones, media player,alarm and notice.1. On the main menu screen, tap > All > Sound > Volume.2. Drag the slider to adjust it.Note: Alternatively, you can also press the volume keys to control thevolume of the current application.2.10 Input method2.10.1 Activate / Hide on-screen keyboardSeveral preset input methods are available on X-431 V+.¾ To input text, tap the input box and the on-screen keyboard will be activatedautomatically.¾ After inputting, tap to hide the keyboard.Note: In some applications, the on-screen keyboard may appear over someinterfaces partially. Close it to view more so that you can judge what’s nextto do.2.10.2 Edit textCut, copy and paste operations are supported.1. Tap the desired text area until a blue cursor appears.2. Press and drag the cursor to highlight the text to be edited.3. Tap SELECT ALL, CUT or COPY to perform the corresponding operations.To delete the selected text, tap the delete key on the keyboard.