Zte MU5120 - Battery Safety and Care; Operating Conditions and Battery Safety; Battery Replacement Warning

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• Do not use the device immediately after a sudden temperature
change, because dew may be generated inside and outside the
device. Do not use it until it becomes dry.
• Handle the device carefully. Do not drop, bend or strike it.
Otherwise the device may be damaged.
• Only qualied personnel can dismantle and repair the device.
• A humidity between 5% and 95% are recommended.
• Do not connect the charger while using the device for a long period.
Failing to do so will trigger the protection mechanism of the battery,
and the battery will not be charged. If you want to charge the
battery, please reconnect the charger.
• Do not connect the charger while using the device for a long
period or use the device and battery in non-operating temperature.
Failing to do so will shorten battery life or cause battery swelling or
leakage. If the battery shows signs of swelling or leakage, please
stop use immediately.
Battery Safety
WARNING!
The battery is not removable. Removal may cause re or explosion.