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Appendix
Error messages Cause and remedy
xx mails have
been received, but
some have not
been received.
y
Appears when not all mails can be received
for an unspecified reason.
Software update
Software update is a function of updating software to use the
handset safely and comfortably. Be sure to keep the version
up-to-date, since the following contents are included.
The following four kinds of software update are available.
z
Upgrade of Android OS
Improve function/operations/product quality and you can use the
handset safely and comfortably by upgrading Android OS, and
pre-installed apps and the handset function.
z
Addition of new function
Improve function/operations and you can use the handset
comfortably by upgrading pre-installed apps and the handset
function.
z
Improvement of the product quality
Improve product quality and you can use the handset
comfortably by upgrading pre-installed apps and the handset
function.
z
Update of security patch
You can use the handset comfortably by applying a security
patch (software which deals with weakness) presented by
Google to the handset.
For details and duration of software update provided for the
handset, refer to the DOCOMO website.