Handset & Hardware Care - SoftBank 304SH User Manual

Handset & Hardware Care
Handset & Hardware Care
・During periods of disuse, charge handset to approximately
40% at least once every 6 months; if left uncharged, files/
settings may be affected or handset may become unusable.
SoftBank Mobile Corp. is not liable for any resulting
damages.
・Use handset within 5 C - 35 C (up to 40
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periods in bathrooms, shower rooms, etc.) and 35% - 90%
humidity.
・Avoid extreme temperature or direct sunlight.
・Handset/Internal Battery may become warm during operation
or while charging. This is normal.
・Warranty does not cover malfunctions resulting from
misuse.
・Clean handset with a soft dry cloth. Alcohol/solvent use
may fade color/print.
・Avoid scratching Display.
・Avoid heavy objects or excessive pressure. May cause
malfunction or injury.
・Do not sit on handset in back pants pocket.
・Do not place heavy objects on handset inside handbags,
packs, etc.
・Handset back cover is not removable. Do not try to remove
it; may cause damage or malfunction, or affect water
resistance.
・Connect only specified products to Port. Other devices may
malfunction or cause damage.
・Do not power off while using SD Card; may result in data
loss or malfunction.
・When walking outside, moderate handset Volume to avoid
accidents.
・Avoid covering Earpiece, Mics and Speaker while using
handset.
・Proximity Sensor prevents Touchscreen misoperation during
calls. Do not cover or place a sticker/label over Proximity
Sensor; Display may remain off during calls, disabling
handset operation.
・When Earpiece area is covered with your hair during calls,
Proximity Sensor may not function properly. Display may
remain on; touching Display accidentally may end the call.
・Do not cover Light Sensor or place a sticker/label over it;
may hinder ambient light detection, resulting in malfunction
of Light Sensor.
C for brief
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SD/USIM Card Slot
SD Card Slot is located above USIM Card Slot. Insert each card
into correct opening in correct orientation.
・Always power off before card insertion/removal.
・Place USIM Card in USIM Tray beforehand.
Touchscreen
・Touchscreen may not respond in these situations:
・Use with gloves/long fingernails
・Use of pens, pencils or sharp objects
・Use with objects on/against Display
・To prevent malfunctions, do not:
・Touch Display with wet fingers
・Use if Display is wet
・Subject Display to force/pressure
・Place labels or stickers over Display
・If Display is wet, wipe it with a soft cloth.
・To improve response, calibrate Touchscreen as follows.
In app sheet, (Settings)
touch panel Follow onscreen prompts
・In the following cases, Press Power Key to activate Screen
lock, then Press Power Key again to cancel it.
・Handset operates automatically without touch input
・Handset does not respond to touch input
TV Antenna
Pulling TV Antenna by its top, extend it fully; adjust angle
to find best reception. After use, straighten TV Antenna and
gently retract it all the way from the bottom. Do not carry
handset with TV Antenna extended; damage may result.
Self Check
If handset is unstable, diagnose the cause as follows.
In app sheet, (Settings) Device info
Follow onscreen prompts
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Device info Adjust
Self check