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Appendix
Appendix
•
When you have a vague idea of
malfunctioning, you can perform diagnosis
by yourself.
For details, refer to NTT DOCOMO website.
•
Check if the software update is necessary for
the terminal. If necessary, perform the
software update (P.252).
•
If your problem persists even if you check the
troubleshooting concerning your
phenomenon, feel free to ask us. For inquiries,
refer to the last page.
■
Power supply
Troubleshooting
Troubleshooting
Phenomenon
Cause and handling
Cannot power
on the terminal
Check if the battery is not run out.
→
Screen is
frozen, or the
power cannot
be turned off
When the screen freezes or the
power cannot be turned off, press
and hold the power key and the
volume up key at the same time for
at least 10 seconds, wait until the
terminal vibrates once and then 3
times consecutively, and then release
your fingers to force stop.
* Note that some data and settings
may be erased due to force-quit
operation.
Summary of Contents for Xperia 1 IV SO-51C
Page 1: ...INSTRUCTION MANUAL ...
