ZTE ZMAX - Manual (Page 156)

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Operating Machinery
Full attention must be given to operating machinery in order to reduce the
risk of an accident.
Product Handling
General Statement on Handling and Use
You alone are responsible for how you use your phone and any
consequences of its use.
You must always turn off your phone wherever the use of a phone is
prohibited. Use of your phone is subject to safety measures designed to
protect users and their environment.
• Always treat your phone and its accessories with care and keep it in a
clean and dust-free place.
• Keep the screen and camera lens clean. Unclean screen or camera
lens may slow down the phone's reaction to your operations or lower
image quality.
• Clean the device and its accessories with a soft material such as
cleaning cloth for eyeglass lenses. Do not use alcohol or other
corrosive substances for cleaning or allow them to get inside.
• Do not expose your phone or its accessories to open flames or lit
tobacco products.