· When charging is complete or the device is fully charged, please disconnect the
charger from the device and unplug the charger from the power outlet.
· The built-in battery is non-removable. Please do not attempt to change or
disassemble the battery by yourself. This may result in damage to the battery or
the device. The battery can only be replaced by an official authorized service
provider.
Notice: Using the wrong model of battery may result in an explosion. Please
make sure to dispose of used batteries as instructed.
Device Working Temperature: The device should be kept at a working
temperature of -10℃ to 35℃. For the user's safety, please avoid using the
device in a high-temperature environment for long periods of time, as this
leads a shorter device lifetime. The device will stop charging automatically
when the battery temperature reaches 45℃, and shut down automatically
when battery temperature is more than 55℃.
When using an external SIM card, self-cutting SIM cards and non-standard
SIM cards can not be used.
We are only responsible for the function of the device’s official operating
system and update system. The use of any other systems or software from
