4Notes on UsageNotes on UsageFor Using the ProductBefore you start using the product, be sure to read the"Safety Precautions" to ensure correct use.• Before you assume that the product is malfunctioning,perform "トラブル診断 (Troubleshooting diagnosis)".On the Applications screen, [auツール/サポート (au tool/support)] → [故障紛失サポート (Repair and Delivery Service)] →[トラブル診断 (Troubleshooting diagnosis)] (in Japanese only)Alternatively, check for possible remedies in "トラブル診断(Troubleshooting diagnosis)" on the au website.https://www.au.com/trouble-check/ (in Japanese only)• Communication is not possible even inside the service areain places where the signal does not reach (e.g. tunnels andbasements). Also, communication is sometimes not possible inpoor reception areas. Communication is sometimes interruptedif you move into a poor reception areas during communications.• Since this product uses radio waves, the possibility ofcommunication intercepts by third parties cannot be eliminated.(Though LTE/WiMAX 2+/GSM/UMTS system has highlysecure confidential communication features.)• Use au's VoLTE (LTE network) to connect to Japaneseemergency services. You cannot use 3G (call switchingnetwork) to connect to emergency services.• While this product supports the au World Service, eachnetwork service described in this manual varies depending onthe area and service content.• Since this product is a radio station under the Radio Law, youmay be asked to temporarily submit the product for inspectionin accordance with the Radio Law.• The IMEI information of your cell phone is automatically sentto KDDI CORPORATION for maintenance and monitoringoperational status of your cell phone.• To use it overseas, check the condition such as regulations ofthe country/region.• The Company is not liable for any damages arising fromearthquakes, lightning, storms, floods or other naturaldisasters, as well as fires, actions by third parties, otheraccidents, intentional or mistaken misoperation by thecustomer, or use under other unusual conditions outside theresponsibility of the Company.• The Company is not liable for any incidental damages(change/disappearance of saved content, loss of businessincome, disruption of business, etc.) arising from use of orinability to use the product.• The Company is not liable for any damages arising fromfailure to observe the described content of Basic Manual (thismanual).• The Company is not liable for any damages arising, forexample, from malfunction caused by combination withconnected devices or software not related to the Company.• Captured image data or downloaded data may sometimes bealtered or lost due to faults, repair or other handling of theproduct. The Company is not liable for any damage or lostincome resulting from recovery of these data.• It is recommended you keep a copy of important data onyour PC's hard disk, etc. Whatever the cause of the defect ormalfunction may be, the Company assumes no responsibilityfor alteration or loss of saved data.• Contents saved in the product, such as contacts, mails andfavorites, might be altered or lost in accident, fault, repair ormishandling. Be sure to keep a copy of important contents.Note that the Company assumes no responsibility for anydamages or lost profits resulting from altered or lost contents.