4 - Table of contentsRestoring to factory settings .................. 68Accessories and tips 70Using the headset .................................. 70Using a Bluetooth headset..................... 70Creating a new access point.................... 70Inserting a microSD card ....................... 71Managing your SIM cards 72SIM Management..................................... 72Appendix 75FAQ and troubleshooting ....................... 75Other sources of help............................. 77Warnings and precautions 78Medical devices ....................................... 79Vehicles .................................................... 80Potentially explosive environments........... 80Emergency calls ..................................... 81Taking care of your smartphone............. 81Specifications ......................................... 83Performance ............................................. 83Display ...................................................... 83Multimedia ................................................ 83USB connector.......................................... 83Connectivity .............................................. 84Camera ..................................................... 84Expansion ................................................. 84Battery ...................................................... 84Dimensions ............................................... 85End User License Agreement 86