Samsung GT-B7620 User Manual(Extended Usage Guide) User Manual page 100

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.
You select a contact to call, but the call is not
dialled
• Ensure that the correct number is stored in the
contact information.
• Re-enter and save the number
(if necessary).
Another caller cannot hear you speaking
• Ensure that you are not blocking the built-in
microphone.
• Move the built-in microphone closer to your mouth.
• If using a headset, ensure that it is properly
connected.
].
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