ZTE Corporation ZTEC90 Manuale Utente

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C90 User manual 
12 
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Use a damp or anti-static cloth to clean the handset.  Do not use an ordinary dry cloth or 
electrostatic cloth.  Do not use chemical or abrasive cleaners as these could damage the 
casing. 
„
 
Third party equipment: The use of third party equipment, cables, or accessories, not 
made or authorized by ZTE, may invalidate the warranty of your phone and also 
adversely affect the phone’s safety and operation. 
„
 
Remember to make backup copies of all important data on your handset. 
„
 
Remember to recycle: The cardboard packing supplied with this handset is ideal for 
recycling. 
Warnings: In the unlikely event of a battery leak, tare care to keep the battery discharge away 
from your eyes and skin.  If the leakage does come into contact with the eyes or skin, flush 
thoroughly with clean water and consult with a doctor. 
Aircraft Safety 
„
 
Switch off your phone or activate the airplane mode when inside or near an aircraft. Use 
of handsets in an aircraft may be dangerous to the operation of the aircraft and may 
disrupt the cellular network.  Failure to observe this instruction may lead to suspension or 
denial of phone service to the offender, or legal action, or both. 
„
 
Airplane mode allows you to use many of your phone’s features, such as games, 
calculator, voice memos, and many others when you are in an airplane or other area 
where wireless signals may cause interference.  In the airplane mode, you are prohibited 
from making or receiving voice/data calls, however you may still attempt calls to your 
local emergency number, i.e., 911.