Sony 3803775 User Manual page 229

Digital book reader
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 Your computer may not be supplying sufficient power. If
you connect the Reader to your laptop computer, maintain
a stable and continuous power supply to the laptop
computer while charging the Reader.
 If the ambient temperature is too cold or too hot for the
Reader to charge, adjust the room temperature to between
5°C (41°F) and 35°C (95°F), disconnect and reconnect the
USB cable.
Battery life seems short.
 The Reader may not have been charged fully. Make sure
that you charge the Reader until
 The operating temperature is below 5°C (41°F). This is due
to the battery characteristics and not a malfunction.
 The Reader requires power while in sleep mode. If you are
not planning to use the Reader, turn it off instead of
leaving it in sleep mode.
 If you are not browsing on the Web, exit [Browser] by
pressing the
 The Reader battery gradually discharges when not in use
for a prolonged period of time. Before turning on the
Reader after a prolonged period of disuse, charge the
Reader again.
 If you are not using wireless communications, turn off Wi-
Fi. See Details.
 If you are charging the Reader by data transfer mode and
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