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TROUBLESHOOTING
NETWORK CONNECTION
322
14
CHAPTER
My smartphone won’t connect to the
mobile network
1 Try the suggestions above for weak
signals.
2 Turn off your phone and turn it on again
(see Turning your
smartphone on/off).
3 Perform a soft reset (see Performing a
soft reset).
My phone seems to turn off by itself
If a system error and reset occur, the
phone automatically turns on if it was on
before the reset. However, if your
smartphone can’t determine if your phone
was on before the reset, it does not
automatically turn on the phone (see
Turning your phone on
).
I can’t tell if data services are available
The following icons appear in the title bar
to indicate whether data services are
available:
Your phone is connected to a 3G
UMTS network, but you are not
actively transmitting data. You
can still make or receive calls.
Your phone is on and a 3G UMTS
data connection is active. You
can make and receive calls and
transmit data simultaneously.
Your phone is connected to a
HSDPA UMTS network, but you
are not actively transmitting data.
You can still make or receive
calls.
NOTE In most cases, when your
phone is connected to a UMTS
network (either 3G or HSDPA)
but you are not actively
transmitting data, the 3G icon
appears. The H icon may appear
when your phone is connected
to a HSDPA UMTS network, but
you are not actively transmitting
data.
Your phone is on and an HSDPA
UMTS data connection is active.
You can make and receive calls
and transmit data
simultaneously.