Nokia 5310 WHITE User Manual - Page 12

damage the memory card as well as the device, and data stored on the card may be corrupted. You can remove or replace the microSD card during phone operation without switching the device off. 1. Make sure that no application is currently accessing the microSD memory card. 2. Remove the back cover of the device. 3. Press the microSD card slightly in to release the lock and remove it. Charge the battery Check the model number of any charger before use with this device. This device is intended for use when supplied with power from the AC-3 and AC-4 charger. 2. Connect the lead from the charger to the charger connector of your phone. If the battery is completely discharged, it may take a few minutes before the charging indicator appears on the display or before any calls can be made. The charging time depends on the charger used. Charging a BL-4CT battery with the AC-3 charger takes approximately 2 hours 30 minutes while the phone is in the standby mode. Antenna Warning: Use only batteries, chargers, and enhancements approved by Nokia for use with this particular model. The use of any other types may invalidate any approval or warranty, and may be dangerous. For availability of approved enhancements, please check with your dealer. When you disconnect the power cord of any enhancement, grasp and pull the plug, not the cord. 1. Connect the charger to a wall socket. Note: As with any radio transmitting device, avoid touching an antenna unnecessarily when the antenna is in use. For example, avoid touching the cellular antenna during a phone call. Contact with a transmitting or receiving antenna affects the quality of the radio communication, may cause the device to operate at a higher power level than otherwise needed, and may reduce the battery life. The picture shows the antenna area marked in grey. Headset Warning: Listen to music at a moderate level. Continuous exposure to high volume may damage your hearing. 11