79
Problem Possible causes Possible solution
Battery not
charging
The battery or battery charger is
damaged.
Contact the dealer.
The phone’s temperature is below
32°F or higher than 113°F.
Adjust the environment to avoid
extremes of temperature.
Poor contact between the battery
and charger.
Check all connectors to make
sure all connections have been
properly made.
Shortened
standby time
The display brightness is high or Wi-Fi,
Bluetooth, GPS, etc. are not disabled
when they are not in use.
Adjust the brightness of the screen
as appropriate.
Exit background-running
applications if they are not being
used for a long time.
Disable Bluetooth, Wi-Fi, or GPS
when not in use.
If you are not able to connect to
the network, the phone will continue
to send out signals as it attempts
to locate a base station. Doing so
consumes battery power and will
consequently shorten standby time.
Change your location to one
where the network is accessible, or
temporarily turn off your phone.
Cannot turn your
phone on
Battery power has been depleted. Recharge the phone’s battery.
NANO SIM card
error
The NANO SIM card has
malfunctioned or is damaged.
Take the NANO SIM card to your
service provider for testing.
The NANO SIM card is inserted
improperly.
Insert the NANO SIM card properly.
There is debris on the NANO SIM card
contacts.
Use a soft, dry cloth to clean the
NANO SIM card contacts.
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