78TroubleshootingCannot turn on by pressing (Power)• Are you hold down (Power)? (P.13)• Is the battery pack charged? (P.10)• Is the battery pack properly inserted? (P.9)• Are the contacts on the battery pack dirty?The power is turned off automatically• Has the battery run out? (P.10)The power is turned off at the startup screen• Has the battery run out? (P.10)Cannot make any phone calls• Is your IS06 turned on? (P.13)• Is the au IC-Card inserted? (P.11)• Is the phone number you entered correct? (Didyou start with the area code first?) (P.34)• Did you tap after entering the phone number?(P.34)• Is your IS06 in airplane mode? (P.14)Cannot receive any phone calls• Do you have suffi cient signal strength? (P.5)• Are you outside the service area? (P.5)• Is your IS06 turned on? (P.13)• Is the au IC-Card inserted? (P.11)• Is your IS06 in airplane mode? (P.14)(Out of Area) appears• Are you outside the service area or in a locationwith poor signal strength? (P.5)• Are you covering the built-in antenna with yourfi ngers or hand? (P.7)Cannot connect to Wi-Fi• Is your IS06 receiving a signal from the wirelessaccess point?• Did you confi gure your Wi-Fi settings? (P.56)The LED lamp flashes but I cannot hear anyringtone• Is your IS06 in manner mode? (P.14)Cannot charge the battery pack• Is the charger connected properly? (P.10)• Is the battery pack properly inserted? (P.9)Cannot perform any key/touch panel operations• Is your IS06 turned on? (P.13)• Did you unlock the screen? (P.20)“au IC-Card (UIM) error” is displayed• Is the au IC-Card inserted? (P.11)• Is a different card except the au IC-Card used?