Sony Xperia 1 IV SO-51C, Instruction Manual

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252 Appendix
Software update
*
is a function which updates
the software so as to use the terminal safer
and more comfortable. The followings are
included. Be sure to update the software to
the latest one.
There are the following 4 types' updates for
Software update.
* On the terminal, it is displayed as System
update.
•
Android OS version upgrade
Upgrade Android OS and the version of the
preinstalled applications to improve the
function/operability/quality resulting in using
the terminal more comfortable and safer.
•
Adding new functions
Update the preinstalled applications or
functions of the terminal to improve the
function/operability resulting in using the
terminal more comfortable.
•
Improving quality
Update the preinstalled applications or
functions of the terminal to improve the
quality resulting in using the terminal more
comfortable.
No voice
service Appears when normal voice call
service is not available.
No voice
service or
emergency
calling Appears when normal/emergency
voice call service is not available.
No mobile
data service Appears when the data service is not
available.
SIM card is
locked Enter your PIN code (P.51) correctly.
SIM card is
PUK-locked Enter your PUK (PIN Unlock Key) (P.51)
correctly.
PIN lock
disable code is
locked. PIN Unlock Key is locked. Please
contact a docomo Shop.
Storage space
running out Available memory of the internal
storage is getting low. If you continue
to use the terminal, some functions
or applications may not work.
Uninstall (P.197) unnecessary
applications.
Memory full There is no memory space in the
internal storage or microSD card.
Delete unnecessary data (P.230) to
save the memory space.
Error
messages
Cause and handling
Software Update
Software update