3CautionCAUTIONInstallation/MaintenanceBefore executing the[MENU] Æ[8. System] Æ[4. Unregistration],double checkwhether thisfunction should beexecuted since allphone informationregistered to thesystem will bedeleted.Use a soft dry clothto clean the phone.Do not use anychemical solventslike wax, benzene,alcohol, thinner,mosquito spray,aerosol, lubricant, ordetergent.The use of chemicalson the phone maycause fading/discoloring or damageto the parts.Do not install thephone on anunstable surface ornear the direct raysof sunlight.It may cause severedamage to the partsof the phone, andyour phone may notwork properly.Do not separate,repair or remodel thephone arbitrarily.If a repair is needed,please contact wherethe phone waspurchased or call theService Center.