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Troubleshooting
Check Here First
If symptoms continue even after checking, contact a nearby
SoftBank Shop or
Customer
Service.
Troubleshooting
Q.
Handset does not power on
A.
Are you Long Pressing
appears.
A.
Is handset recharged? Recharge handset if not charged.
A.
Did you continue to use handset while warm before it
powered off? Try powering handset on after it cools
down.
Q.
Handset suddenly powers off
A.
If handset continues to be used while warm, a caution
appears and handset powers off after approximately 3
minutes.
Q.
Handset freezes/operation is unstable
A.
If handset stops operating or no longer accepts input,
force-shut down handset.
(Long Press for at least 8 seconds)
・ Release
once handset vibrates; handset powers
off.
Q.
Operation is unstable after a new application was
installed
A.
The newly installed application may be the cause.
Uninstall the application in Safe mode. See
"Uninstalling
Applications." To power on handset in
Safe mode:
(Long Press)
Touch & Hold
Check Display,
OK
・While in Safe mode, "Safe mode" appears at lower
left.
・After restarting in Safe mode, handset can be
powered on as usual.
・By powering on handset in Safe mode, added widgets
may be deleted.
・Before powering on handset in Safe mode, it is
recommended that you back up important data.
Q.
Handset initiates operation without Touchscreen
being operated / Handset does not respond after
Touchscreen being operated
A.
Press
to turn off screen, Press
turn on screen and then operate handset.
? Press
until the logo
Power off
again to
Q.
Cannot use Phone, email, or Internet
A.
Check whether you are where signal is weak or are out
of service area.
A.
Power on handset again.
A.
Is Airplane mode set? If
cancel Airplane mode:
(Long Press)
Airplane mode
A.
Is Cellular data disabled? To check whether Cellular
data is enabled:
In app sheet,
(Settings)
Cellular data
A.
Is a disabled access point set? To return to initial
settings:
In app sheet,
(Settings)
Network settings
Access Point Names
Q.
Battery level goes down quickly
A.
Are you where signal is weak or have been out of
service area for a long period? Calling where signal is
weak or being out of service area uses a lot of battery.
A.
The following shorten handset usage time: frequent
use of Mobile Light, sound-emitting functions/
operations, frequent communication, etc. with an
external device, brightening Display, setting a long
Display-on time. Use Energy saving settings to reduce
unneeded battery consumption. See
Saving
Settings" for details.
Q.
Cannot install applications
A.
Is there only a little free space on handset memory? To
check free space:
In app sheet,
(Settings)
A.
Applications not supported by handset cannot be
installed.
Q.
Display suddenly dims
A.
Display dims automatically when handset becomes
warm. Display returns to original brightness once
handset cools down.
Q.
Cannot unlock screen
A.
If handset stops operating or no longer accepts input,
force-shut down handset.
(Long Press for at least 8 seconds)
・ Release
once handset vibrates; handset powers
off.
163
appears in Status Bar, to
Data usage
Other settings
Cellular networks
Reset to default
"Using Energy
Storage
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Table of Contents
Troubleshooting
