Sharp AQUOS Crystal User Manual
Cannot charge / Charging takes time
Is Micro USB plug on AC Charger firmly inserted in
handset? Remove and then reinsert firmly.
Is AC Charger firmly plugged into a household AC
outlet? Unplug and plug in again firmly.
Are you using a non-specified AC Charger? Always use
a specified product. Using an unspecified product not
only prevents charging, but may also affect Internal
Is Notification Lamp blinking? Handset is not being
charged. Use a specified charger and charge handset.
If charging is still not possible, contact
or a SoftBank Shop.
Is Micro USB plug on AC Charger soiled? Clean
terminals with a clean, dry cotton swab, etc. before
Are you recharging by USB? Recharging by USB takes
longer than with AC Charger. You may also not be able
to recharge depending on the connection environment.
Recharging stops / Recharging does not start
Recharging stops automatically if handset becomes
warm. Recharging starts again once handset cools
USIM Card is not recognized
Is USIM Card installed properly? Is it installed in the
right location and orientation? Turn off handset, check
whether USIM Card is installed properly, and then turn
handset on again. If this does not remedy the problem,
USIM Card may be damaged.
Are there any fingerprints, etc. or other soiling on the
(gold) IC chip on USIM Card? Remove USIM Card, wipe
with a clean, dry cloth, and install it again properly.
Is wrong USIM Card installed? An unusable USIM Card
may be installed. Make sure that the right USIM Card is
Cannot recharge by USB
Is the computer turned on? You cannot recharge if the
computer is not turned on.
Are you using a USB hub? You may not be able to
recharge if using a USB hub. Connect the optional Micro
USB Cable to the computer.
Cannot make a call / Calls do not connect
appears in Status Bar,
Did you dial all digits for the number? Dial all digits
for numbers starting with a "0" area code, etc.
Are you where handset receives a signal? Check signal,
change locations and call again.
Cannot hear the other party
Is the call volume low? Press Volume Up Key during a
call to turn the call volume up.
Is handset set to always use a handsfree device
for calls? To check whether
In app sheet,
・Can be checked when