Samsung GT-I8910 User Manual page 71

Message Try this to solve the problem:
Your SIM or USIM card is
X attempts blocked, usually as a result of
remaining. entering your PIN incorrectly
Enter PUK several times. You must enter the
code: PUK supplied by your service
provider.
Your device does not show a signal (no
bars next to the network icon)
• If you just turned on the device, wait about 2
minutes for your device to find the network
and receive a signal.
• You may not be able to receive a signal in
tunnels or elevators. Move to an open area.
• You may be between service areas. You
should receive a signal when you enter a
service area.
You forgot a security code, PIN, or PUK
The default lock code is 00000000. If you
forget or lose this or another code, contact the
seller or your service provider.
Your display shows white lines
The display may show white lines if you have
turned the device on after a long period of
disuse or if you removed the battery without first
turning off the device. The display should
correct itself in a short time.
You enter a number, but the call is not
dialled
• Ensure that you have pressed [
• Ensure that you have accessed the right
cellular network.
• Ensure that you have not set call barring for
the phone number.
].
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