Zte Z289L Quick Start Manual page 28

FOR YOUR SAFETY
• Avoid using your device near or inside metal
structures or establishments that can emit
electromagnetic waves; it may influence signal
reception.
• Your device is not waterproof. Please keep it dry and
store in a shaded and cool place.
• Do not use your device immediately after a sudden
temperature change. In such case, it may produce
moisture inside and outside your device. Wait until
the device is acclimated to the new environment
before powering it on. If there is moisture, wait until
the device is dry before using it.
• Handle your device carefully. Do not drop, bend, or
strike it; your device may get damaged.
• No dismantling by non-professionals; only qualified
technicians can undertake repair work.
• Operating temperature range of 32°F to 95°F
(0°C to 35°C) and humidity range of 5% to 95%
are recommended.
BATTERY HANDLING
• Do not short-circuit the battery, as this can cause
excessive heat and fire.
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