Samsung GT-I8000 GT-I8000 User Manual page 144

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
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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