Other accessories may not be compatible with your One. Malfunctions caused by using
unapproved accessories are not covered by the warranty service.
Cautions
• Humidity and liquids may damage your One. Keep your One dry.
• Ensure that the strap is kept clean. Contact with contaminants, such as dust and dye, can
cause stains on the strap that may not be fully removed.
• Do not allow water to contact the touch screen. The touch screen may malfunction in humid
conditions or when exposed to water.
• If the speaker is wet, sound may be distorted. Ensure that the speaker is dry.
Maintaining water and dust resistance
The device may be damaged if water or dust enters the device. Follow these tips carefully to
prevent damage to the device and to maintain the water- and dust-resistant performance of the
device.
• Do not immerse the device in water.
• Do not expose the device to water moving with force, such as water running from a tap,
ocean waves, or waterfalls.
• If the device or your hands are wet, dry them thoroughly before handling the device.
• If the device is exposed to freshwater, dry it thoroughly with a clean, soft cloth. If the device
is exposed to any liquid other than freshwater, wipe the device with freshwater immediately
and dry it thoroughly with a clean, soft cloth.
• If the device is dropped or receives an impact, the device may be damaged.
• If the device has been immersed in water or the microphone or the speaker is wet, sound may
not be heard clearly during a call. Ensure that the microphone or the speaker is clean and dry
by wiping it with a dry cloth.
• The touch screen and other features may not work properly if the device is used in water or in
other liquids.
Charging the battery
Charge the battery before using the One for the first time. A computer can be also used to charge
the One by connecting them via the USB cable.
• When the battery power is low, the battery icon appears empty.
• If the battery is completely discharged, the One cannot be turned on immediately when the
charger is connected. Allow a depleted battery to charge for a few minutes before turning on
the One.
Connecting the charger improperly may cause serious damage to the One. Any damage caused by
misuse is not covered by the warranty.
• If the One receives an unstable power supply while charging, the touch screen may not
function. If this happens, unplug the charger from the One.