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First Step Guide

731SC

Support

Safety Precautions

Before Using Handset

Customer Service

SoftBank

Customer Center

From a SoftBank handset,

dial toll free at

157 

(General Information)

113 

(Customer Assistance)

SoftBank Global

Call Center

From outside Japan, dial

+81-3-5351-3491

(International charges apply.)

Call this number immediately 

if handset/USIM Card is lost or 

stolen while outside Japan.

Call these numbers toll free from landlines.

Subscription Areas

Contact

Hokkaido, Aomori, Akita, Iwate, Yamagata, 
Miyagi, Fukushima, Niigata, Tokyo, Kanagawa, 
Chiba, Saitama, Ibaraki, Tochigi, Gunma, 
Yamanashi, Nagano, Toyama, Ishikawa, Fukui 

General Information

 0088-240-157

Customer Assistance

 0088-240-113

Aichi, Gifu, Mie, Shizuoka

General Information

 0088-241-157

Customer Assistance

 0088-241-113

Osaka, Hyogo, Kyoto, Nara, Shiga, Wakayama

General Information

 0088-242-157

Customer Assistance

 0088-242-113

Hiroshima, Okayama, Yamaguchi, Tottori, 
Shimane, Tokushima, Kagawa, Ehime, Kochi, 
Fukuoka, Saga, Nagasaki, Oita, Kumamoto, 
Miyazaki, Kagoshima, Okinawa

General Information

 0088-250-157

Customer Assistance

 0088-250-113

Emergency Numbers

Online English Manual

See SOFTBANK MOBILE Corp.
Website (

http://www.softbank.jp

). 

May be unavailable at purchase. 
Call Customer Service or try later.

• Police ..................................

110

• Fire & Ambulance ..............

119

• Maritime Safety Agency... .

118

Use specifi ed battery and Charger (sold 
separately) only.

Non-specifi ed equipment use may cause battery 
to leak, overheat, burst or ignite, and may cause 
Charger to overheat, ignite, malfunction, etc.

Do not disassemble, modify or solder handset or 
related hardware.

May cause fi re, injury, electric shock or malfunction. 
Battery may leak, overheat, burst or ignite. Modifying 
handsets is prohibited by the Radio Law and subject 
to a penalty.

Do not expose handset or related hardware to 
liquids.

Do not leave handset or related hardware wet 
after exposure to water, pet urine, etc., and do not 
charge wet battery. May cause overheating, electric 
shock, fi re, injury or malfunction. Use them in an 
appropriate place properly.

Do not charge battery in or expose handset or 
related hardware to extreme heat (e.g., near 
fi re or sources of heat, in direct sunlight, inside 
vehicles, etc.).

May cause warping/malfunction; battery may 
leak, overheat, ignite or burst. Handset or related 
hardware may become hot to the touch, leading to 
burn injuries, etc.

Do not force battery/Charger into handset. 
Check the direction and retry.

Battery may leak, overheat, burst, ignite, etc.

Read battery label to confi rm battery type; use/
dispose of battery accordingly.

Do not dispose of battery in fi re.

Battery may leak, burst, ignite, etc.

Do not damage battery (with a nail, hammer, foot, 
etc.) or subject it to strong impacts or shocks.

Battery may leak, overheat, burst, ignite, etc.

Keep wire or other metal objects away from 
battery terminals. Do not carry/store battery 
with conductive material (pencil lead, metallic 
strip, metal jewelry, etc.).

Battery may leak, overheat, burst, ignite, etc.

If battery fl uid gets in eyes, do not rub; rinse 
with water and consult a doctor immediately.

Eyes may be severely damaged.

Keep handset off and Charger disconnected near 
gas stations or places with fi re/explosion risk.

Handset use near petrochemicals or other 
fl ammables may cause fi re/explosion.
To prevent fi re or explosion, do not use handset near 
gas or fi ne particles (Coal, dust, metal, etc.).

Do not apply strong shocks or impacts.

Do not drop/throw handset or related hardware. 
Battery may leak, overheat, burst or ignite, resulting in 
fi re, electric shock, malfunction, etc.

Keep handset and related hardware out of 
infants' reach.

Infants may choke from swallowing handset or 
related hardware or be injured, etc.

Do not use handset while driving or cycling.

Accidents may result.
Phone use while driving or cycling is prohibited by 
law and subject to a penalty; park in a legal parking 
space beforehand.

Turn handset power off before boarding aircraft. 
Cancel the setting that turns handset power on 
automatically (alarm, etc.) beforehand.

Handset use may impair aircraft operation. Turning 
on handset power aboard aircraft is prohibited by law 
and subject to a penalty.

Accessories

•Battery [SCBAM1]

Manner Mode

• Minding Mobile Manners

Please use handset responsibly. Inappropriate handset use can be both dangerous and bothersome to others. 
Please take care not to disturb others with handset use. Adjust handset use to your surroundings accordingly.

Activating/Canceling Manner Mode

Press 

#

 for 1+ seconds

USIM Card Installation

IC

Notch 

Insert USIM Card 
with IC Chip down 
as shown in the 
illustration

Push in USIM Card 
until it stops

USIM Card must be inserted to use 731SC. Turn 731SC off 
and remove battery before inserting/removing USIM Card.
To prevent damaging it, avoid touching the IC chip when 
inserting or removing USIM Card.

Battery Installation

Notches 

Press down to slide 
Battery Cover loose

Remove Battery 
Cover completely

Align Battery Slots 
and 731SC Notches 
to insert battery

Slide Battery Cover into 731SC 
Slots; replace Battery Cover

• PIN

4- to 8-digit security code; prevents unauthorized use.
Set 

PIN certifi cation

 to 

On

 to require PIN entry at 

power on.

• PIN2

4- to 8-digit security code required for Reset Call Cost 
or Edit Cost Limit, etc.

Change PIN and PIN2 as required.

• Canceling PIN Lock (PUK/PUK2 Code

)

Incorrectly entering PIN or PIN2 three consecutive times 
activates PIN Lock and limits 731SC function access. 
Enter PUK (PIN Unlocking Key) Code to cancel PIN Lock. 
For more information, contact Customer Service.

 

Entering PUK/PUK2 incorrectly ten consecutive times locks USIM Card 

and disables 731SC. Write down PUK and PUK2. Unlocking USIM 
Card requires special service. Contact Customer Service.

USIM PINs

• Phone Password

4-digit number (9999 by default) required to use or 
change handset functions. Entered digits appear as  . 
If incorrect, error message appears; try again.

• Center Access Code

4-digit number specifi ed at subscription; use to subscribe 
to fee-based information/access Voice Mail via landlines.

• Network Password

4-digit number specifi ed at subscription; use for Call
Barring, etc. Entering it incorrectly three consecutive
times locks Call Barring settings. To resolve, Network
Password and Center Access Code must be changed.
For details, contact Customer Service.

Change Phone Password or Network Password on 731SC.

Security Codes

Weight

Approximately 93.8 

g

Continuous 
Talk Time

Voice Call:  270 minutes

Continuous 
Standby Time 
(Display off)

500 hours

Charging Time 
(power off)

AC Charger: Approximately 150 minutes

Dimensions 
(W x H x D)

Approximately 44.5 x 107.9 x 14.7 mm 

Maximum Output

0.25W

•  Values calculated with battery installed.
•  Actual times may be reduced by alternating between 

operations/transmissions and Standby.

Specifi cations

Charger

AC 100V outlet

2

3

Port Cover

1

1

Open Port Cover and insert Adapter Connector

2

Plug Charger into an AC 100V outlet

•  While charging, battery indicator charges as follows: 

 

 

 

 

 fl ashes when battery is full.

•  Charging time is approximately 150 minutes.

3

Unplug Charger, then disconnect handset

Charging

SoftBank 731SC

First Step Guide 

Emergency Numbers 

Customer Service 

More Information 

English Interface 

International Call 

Customizing Address 

And More... 

731SC

More Information

GH68-21338A (Rev. 1.0)

Do not touch battery contacts.

For more information, see User Guide P.xxvii

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