Sony Xperia 1 IV SO-51C, Instruction Manual

Page: 252 / 282

250 Appendix
■
Data management
Cannot use the
terminal
overseas
(when
is
displayed)
•
Check if you are out of the
international roaming service area
or in an area with poor radio waves.
Check if the service area and
network operator are available or
not, refer to NTT DOCOMO website.
•
Change the network settings or
overseas network operator
settings.
-Set "Preferred network type" to
"5G/4G/3G/GSM".
→
P.238
-Turn on "Automatically select
network".
→ P.237
•
Turning the power off and on may
solve the problem.
→
P.47
Cannot perform
data
communication
overseas Turn on "Data roaming".
→
P.237
The terminal
suddenly
became
unavailable
while using
overseas Check if usage amount exceeds the
limit of maximum charges for use.
For use of "International roaming
(WORLD WING)", the limit of
maximum charges for use is set in
advance. If the limit of maximum
charges for use is exceeded, pay the
charges.
Cannot receive
calls overseas Is "Incoming call restriction while
roaming" set to "Activate restriction"?
→
P.241
Phenomenon Cause and handling
No caller ID is
notified/A
notified caller
ID is different
from that of
the caller/
Functions for
using contents
saved in
phonebook or
those for using
Caller ID
notification do
not operate Even if a caller notifies its caller ID, it is
not displayed on the terminal unless
the network or network operator
notifies it. And a different caller ID
may be notified depending on the
network or network operator you
use.
Phenomenon Cause and handling
Data transfer is
not performed Check if USB hub is used. If you use
USB hub, operations may not be
performed correctly.
Data saved in
microSD card is
not displayed Remove and install the microSD card.
→ P.39
Images are not
shown
correctly When image data is broken, it cannot
be displayed correctly, for example, a
black screen appears.
Phenomenon Cause and handling