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63Troubleshooting and FAQs
Problem Possible Causes Possible Solution
Battery will
not charge
The battery or battery
charger is damaged.
Contact the dealer where
you purchased the
equipment.
The phone’s temperature
is below 32°F (0°C) or
higher than 113°F (45°C).
1. Move the battery to an
environment where the
temperature is within
operating range.
2. Allow time for the
battery’s temperature
to return to normal
before attempting to
charge again.
Poor contact between the
battery and charger.
Check and clean all
connectors to ensure
good contact.
Unusually
short battery
life
Certain phone functions
consume additional
battery power, such as
Bluetooth and HAC mode.
Disable Bluetooth and/or
HAC mode if you are not
using these functions.
Weak network signal.
Turn off the phone until
you reach an area with a
strong network signal.
62 Troubleshooting and FAQs
Problem Possible Causes Possible Solution
Phone will not
turn on
Battery is depleted. Charge the battery.
SIM card error
SIM card is damaged or
defective.
Take the SIM card to a
service center for testing.
SIM card inserted
improperly.
Check to ensure that the
SIM card is facing the right
direction and that it is fully
inserted into the slot.
Dirt or debris on the SIM
card contacts.
Use a soft, dry cloth
to clean the SIM card
contacts.
PIN code is
blocked
You have entered an
incorrect PIN code 10
consecutive times.
If you have the SIM card’s
PUK code, use the PUK
code to unlock the SIM
card.
If you do not have the PUK
code, contact your service
provider.
Unable
to enter
information
into the
Address Book
The Address Book’s
memory is already full.
Delete unneeded data
from the Address Book.