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79Troubleshooting
Solution
: Try another battery and
charger for the same phone model,
or visit your retailer and ask them to
verify if the battery and charger are
working properly.
The phone turns itself off
Possible cause
: The button has
been pushed unintentionally.
Solution
: Turn on the automatic key
lock, or lock the keypad manually
%
76 Keypad lock
.
Possible cause
: The battery
connection is poor.
Solution
: Make sure the battery is
inserted correctly
%
5 To insert SIM
card and battery
.
I cannot use SMS/text messages on
my phone
Possible cause
: Settings are missing
or incorrect.
Solution
: Contact your network
operator to find out the correct SMS
service centre setting
%
35 Text
messaging (SMS)
.
I cannot use MMS/picture messages
on my phone
Possible cause
: Your subscription
does not include data capability.
Solution
: Please contact your network
operator.
Possible cause
: Settings are missing
or incorrect.
Solution
: %
6 Help in your phone
or go
to
www.sonyericsson.com/support
,
choose your phone model, then choose
“Phone setup – MMS” and follow the
instructions
%
60 Settings
.
I cannot use the Internet
Possible cause
: Your subscription
does not include data capability.
Solution
: Please contact your network
operator.
Possible cause
: Internet settings are
missing or incorrect.
Solution
: %
6 Help in your phone
or go
to
www.sonyericsson.com/support
,
choose your phone model, then
choose “Phone setup – WAP” and
follow the instructions
%
60 Settings
.
The phone cannot be detected by
other users via Bluetooth™ wireless
technology
Possible cause
: You have not turned
the Bluetooth function on.
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