Antenna locationsYour device may have internal and externalantennas. As with any radio transmitting device,avoid touching the antenna area unnecessarilywhile the antenna is transmitting or receiving.Contact with such an antenna affects thecommunication quality and may cause the device tooperate at a higher power level than otherwiseneeded and may reduce the battery life.1 — Bluetooth and wireless LAN antenna, and GPSreceiver2 — FM transmitter antenna3 — Cellular antennaNote that the Bluetooth, WLAN, GPS, and FMtransmitter antennas are located in the back coverof your device. If you change the back cover, checkthat the new cover includes these antennas,otherwise these connections stop working.8