Zte Optus X Start 4 User Manual page 55

Turn off when told to on aircraft and at airports.
Turn off when near explosive materials or liquids.
Don't use at gas stations.
Your phone may produce a bright or flashing light.
Don't dispose of your phone in fire.
Avoid extreme temperatures.
Avoid contact with liquids. Keep your phone dry.
Do not attempt to disassemble your phone.
Only use approved accessories.
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