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54 Setting a PIN On the Applications screen, tap Settings >Device >Lock screen >Screen lock >PIN. Enter at least four numbers, and then enter the password again to verify it. Setting a password On the Applications screen, tap Settings >Device >Lock screen >Screen lock > Password. Enter at least four characters including numbers and symbols, and then enter the password again to verify it. Unlocking the device Turn on the screen by pressing the Power button or the Home button, and enter the unlock code. If the unlock code is forgotten, take the device to a Samsung Service Centre to reset it. 55 Upgrading the device The device can be upgraded to the latest software. This feature may not be available depending on the region or service provider. Upgrading with Samsung Kies Launch Samsung Kies and connect the device to the computer. Samsung Kies automatically recognises the device and shows available updates in a dialogue box, if any. Click the Update button in the dialogue box to start upgrading. Refer to the Samsung Kies help for details on how to upgrade. • Do not turn off the computer or disconnect the USB cable while the device is upgrading. • While upgrading the device, do not connect other media devices to the computer. Doing so may interfere with the update process. Upgrading over the air The device can be directly upgraded to the latest software by the firmware over-the-air (FOTA) service. On the Applications screen, tap Settings >General >About device >Software update >Update. 56 Communication Phone Use this application to make or answer a call. Tap Phone on the Applications screen. Making calls Making a call Use one of the following methods: • Phone: Enter the number using the keypad, and then tap • Groups: Make a call from the list of contact groups. • Favourites: Make a call from the list of favourite contacts. • Contacts: Make a call from the contacts list. Speed dial numbers For speed dial numbers, tap and hold the corresponding digit. Number prediction When entering numbers on the keypad, automatic predictions appear. Select one of these to make a call. . Finding contacts Enter a name, phone number, or email address to find a contact in the contacts list. As characters are entered, predicted contacts appear. Select one to place a call to it. . . Making an international call Tap and hold 0 until the + sign appears. Enter the country code, area code, and phone number, and then tap During a call The following actions are available: • : Switch to a Bluetooth headset if it is connected to the device. • : Dial a second call. • End call: End the current call. • Keypad: Open the keypad. • Mute: Turn off the microphone so that the other party cannot hear you. • Merge: Make a multiparty call when connected to two calls. Repeat this to add more parties. This feature is available only if the multiparty call service is active. • Swap: Switch between two calls. • >Enable extra volume: Increase the volume. • >Hold: Hold a call. Tap >Unhold t...