Sharp Aquos R3

156
Appendix
y
The safe mode is not an ordinary activating state and thus
deactivate the safe mode if you want to use in an ordinary
way.
z
Apps do not work properly (e.g. inability to activate them,
frequent errors)
y
Make sure there is no disabled app. Try again after enabling a
disabled app, if any.
☞
P. 118 “Enabling an app”
y
Is the use of requiring function for operating the app allowed?
☞
P. 63 “First things first”
y
Make sure Battery optimization is not carried out.
☞
P. 64
“Battery optimization”

Calling
z
Calls cannot be made
y
Make sure Airplane mode is not set.
☞
P. 110 “Network &
internet”
z
Ringtone does not sound
y
Make sure the ringtone volume is not set to “0”.
☞
P. 122
“Sound”
y
Make sure the manner mode or Airplane mode is not set.
☞
P. 57 “Switching manner mode” , P. 110 “Network &
internet”
y
Make sure the call restriction such as call blocking is not set.
☞
P. 72 “Call settings”
z
Calls are not available ([
] does not disappear even after
moving to another place or calls cannot be made/received even
though signal status is not bad)
y
Turn the power on again or attach the nanoSIM Card again.
☞
P. 36 “nanoSIM Card” , P. 43 “Turning power on/off”
y
Depending on the signal type, even though status is “inside
the service area” or “[
] (indicating signal status) appears”,
making/receiving a call may not be available. Move to another
place and call again.
y
Make sure the call restriction such as call blocking is not set.
☞
P. 72 “Call settings”
y
In a crowded place, heavy telephone/mail traffic may make it
difficult to get a connection depending on how congested the
radio waves are. In this case, a busy tone is played. Move to
another place or call again later.

Screen
z
Display is dark
y
Make sure the light duration of the backlight is not set to be
short.
☞
P. 119 “Display”
y
Make sure brightness of the display is not changed.
☞
P. 119 “Display”
y
Make sure [Adaptive brightness] is not set. The brightness of
the screen varies depending on the surrounding light if the
setting is not set.
☞
P. 119 “Display”
y
Make sure [VeilView] is not set.
☞
P. 121 “VeilView”
y
Make sure [Battery Saver] is not set.
☞
P. 118 “Battery
Saver”