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Appendix
Appendix
Troubleshooting
Before you assume that the product is malfunctioning,
check the following items and perform "Troubleshooting
diagnosis" in the "Malfunction reception" app.
In the Applications screen, [auツール／サポート(au tool/
support)] → [故障受付 (Malfunction reception)] → [トラブル診
断(Troubleshooting diagnosis)] (in Japanese only)
If the problem does not improve even if you check the
above items, 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)
After-sales service
■ When asking for repair
For repair, contact Repair and Delivery Service Center.
During the
warranty period
Repairs will be done based on the terms of services
of the free-of charge repair warranty described.
Outside the
warranty period
We shall repair the product for a charge as
requested by the customer if repair renders it
usable.
* The warranty is valid for one year from the day that you rst buy the product.
• Before handing in the product for repair, make a backup of the
contents of memory since they may disappear during repair.
Note that the Company shall not be liable for any damages and
loss of income should the contents of memory be altered or lost.
• Recycled parts that meet the Company's quality standards
are sometimes used for repair.
• Collected au cell phones by Replacement mobile phone
delivery service which you used before are recycled to cell
phones for replacement after repairs. Also replaced parts by
au after-sales service are collected and recycled by KDDI.
They are not returned to customers.
• The product which is processed, remodeled, analyzed
(including by modifying or analyzing the software (including by
rooting etc.), reverse engineering, decompiling), or repaired by
an unauthorized repair oce is not covered by the warranty
and repair may be refused.
• The battery in this product is not covered by the free-of-
charge repairs warranty except in the case of a fault caused
by a defect in the battery's materials or manufacture.
■ Performance parts for repair
The Company retains performance parts for repair of the
Galaxy S8 main unit and its peripherals for four years after
discontinuation of production. "Performance parts for repair"
refers to parts required for maintaining the functions of the
product.
■ Free-of-charge repair warranty
1. When you contact the repairs help desk, have the serial
number (IMEI number) ready. You can nd the serial number
(IMEI number) on this product or on a sticker attached the box
this product is sold in.
2. If this device malfunctions during the warranty period and
during normal use that follows the precautions listed in the
instruction manual, au will repair the device for free.
3. Repairs will not be free of charge in the following cases, even
during the warranty period. (Or repair may not be possible.)
a
If you did not follow the instruction manual and use the
device correctly.
b
If the device broke or was damaged by unauthorized repairs
or modications.
c
If you had the device repaired at a facility that is not an
authorized repair facility as designated by au.
d
If the device breaks or is damaged due to an accident or
your own negligence when you are using or handing the
device. Alternatively, there are indications that the device
was dropped, got wet, damp, or the like.
e
If the device breaks or is damaged due to natural disasters,
such as earthquakes, wind and ood damage, re, damage
from salt, or abnormal voltage.
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