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Safety Precautions
When Using the Product
• Before you start using the product, make sure to read the
"Safety Precautions" in this manual to ensure correct use.
• Before you assume that the product is malfunctioning,
check for possible remedies in "クイック診断 (Quick
check)" and " ト ラブル診断 (Trouble check)" on "故障紛失
サポー ト (Repair and Delivery Support)" app.
■ Quick check
Home screen → [サポー ト (Support)] → [故障紛失サポー ト
(Repair and Delivery Support)] → [クイック診断してみる (Try
quick check)](Displayed language is Japanese only)
■ Trouble check
Home screen → [サポー ト (Support)] → [故障紛失サポー ト
(Repair and Delivery Support)] → [便利な機能 (Useful
functions)] → [ トラブル診断を試す(Try trouble check)]
(Displayed language is Japanese only)
Also available on the following au home page.
https://www.au.com/trouble-check/ (in Japanese)
6
• Communication is not possible even inside the service
area in places where the signal does not reach (e.g.
tunnels and basements). Also, communication may not
be possible in poor reception areas. Communication may
be interrupted if you move into a poor reception areas
during communications.
• Since this product uses radio waves, the possibility of
communication intercepts by third parties cannot be
eliminated (though the LTE/WiMAX 2+/GSM/UMTS system
has highly secure confidential communication features).
• VoLTE (LTE network) by au is used when connecting with
emergency call receiving agencies within Japan. You
cannot connect using 3G (circuit-switched network).
• The product is compatible with au World Service.
Each network service described in this manual varies
depending on the area and service content.
• Since the product is a radio station under the Radio Law,
you may be asked to temporarily submit the product for
inspection in accordance with the Radio Law.
• The IMEI information of your cell phone is automatically
sent to KDDI CORPORATION for maintenance and
monitoring operational status of your cell phone.
• If you are using the product overseas, check the relevant
laws and regulations of the country/region you visit
beforehand.
• The Company is not liable for any damages arising from
earthquakes, lightning, storms, floods or other natural
disasters, as well as fires, actions by third parties, other
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