Lenovo K920 Smartphone - Manual (Page 14)

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Important handling information
Cleaning
Clean Lenovo Phone immediately if it comes in contact with anything that may
cause stains, such as dirt, ink, makeup, or lotions. To clean:
 Disconnect all cables and turn off Lenovo Phone (press and hold the
Sleep/Wake button, then slide the on-screen slider).
 Use a soft, lint-free cloth.
 Avoid getting moisture in openings.
 Do not use cleaning products or compressed air.
Operating temperature
Be aware of heat generated by Lenovo Phone. When using Lenovo Phone,
keep it away from hot or high-voltage environments, such as electric
appliances, electric heating equipment, or electric cooking equipment.
Use Lenovo Phone only in the temperature range of -10°C (14°F)—45°C (113°F)
to avoid damage.
When Lenovo Phone is turned on or the battery is charging, some parts might
become hot. The temperature that they reach depends on the amount of
system activity and the battery charge level. Extended contact with your body,
even through clothing, could cause discomfort or even a skin burn. Avoid
keeping your hands, your lap, or any other part of your body in contact with a
hot section of Lenovo Phone for any extended time.
Protecting your data and software
Do not delete unknown files or change the name of files or directories that were
not created by you; otherwise, Lenovo Phone software might fail to work.
Be aware that accessing network resources can leave Lenovo Phone
vulnerable to computer viruses, hackers, spyware, and other malicious
activities that might damage Lenovo Phone, software, or data. It is your
responsibility to ensure that you have adequate protection in the form of
firewalls, antivirus software, and anti-spyware software and keep such
software up to date.