User's Manual

85
the circuit board.
! Do not clean your phone by using irritant chemicals, cleaning
agent or strong cleaner. Gently use soft clean and dry cloth to clean the
lens (for example, camera, distance sensor and light sensor lens).
! Do not use artist color to paint your phone because the artist color
may block up phone components.
! Use the supplied antenna with device or approved antenna only.
Unapproved antenna or revised antenna or other accessories may
damage the device and offend wireless device management methods.
! Please use charger indoor.