49
Using Your Device
• Please use original accessories or accessories that are
authorized. Using any unauthorized accessories may
affect your device’s performance, and violate related
national regulations about telecom terminals.
• Avoid using your device near or inside metallic struc-
tures or establishments that can emit electromagnetic
waves. Otherwise it may inuence signal reception.
• Your device is not waterproof. Please keep it dry and
store in a shady and cool place.
• Do not use your device immediately after a sudden
temperature change. In such case, it will produce dew
inside and outside your device, so don’t use it until it
becomes dry.
• Handle your device carefully. Do not drop, bend or
strike it. Otherwise your device will be damaged.
• No dismantling by non-professionals and only qualied
technicians can undertake repair work.
• Operating temperature range of 0°C ~ +35°C and hu-
midity range of 5% ~ 95% are recommended.