Nokia 9210644 manual Call functions, Antenna locations, Connect a compatible headset

To change the lock code, select Menu > Settings > Config. > General > Security > Phone and SIM card > Lock code. Enter the old code and then the new code twice. The new code can be 4-255 characters long.

To set a time-out after which the device is automatically locked and can be used only if the correct lock code is entered, select Menu > Settings > Config. > General > Security > Phone and SIM card > Phone autolock period. Enter a number for the timeout in minutes, or select None to deactivate the autolock period.

When the device or keypad is locked, calls may be possible to the official emergency number programmed into your device.

■ Antenna locations

Your device has four antennas: cellular antenna, Bluetooth antenna, WLAN antenna, and GPS antenna. The antennas are integrated, and located at the upper and lower parts of your device.

Note: Your device may have internal antennas. As with any radio transmitting device, avoid touching the antenna area unnecessarily while the antenna is transmitting or receiving. Contact with such an antenna affects the communication quality and may cause the device to operate at a higher power level than otherwise needed and may reduce the battery life.

■Connect a compatible headset

Do not connect products that create an output signal as this may cause damage to the device. Do not connect any voltage source to the universal headset connector.

When connecting any external device or any headset, other than those approved by Nokia for use with this device, to the universal headset connector, pay special attention to volume levels.

■ Connect a USB data cable

To set the default USB connection mode, select Menu > Settings > Data Cbl. > Data Cable Mode and the desired mode. To set the default mode to be activated automatically, select Ask on connection > No.

3. Call functions

To adjust the volume during a call, press the volume key.

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