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• PUK: Your SIM or USIM card is blocked, usually as a result of entering
your PIN incorrectly several times. You must enter the PUK supplied by your
service provider.
• PIN2: When you access a menu requiring the PIN2, you must enter the
PIN2 supplied with the SIM or USIM card. For details, contact your service
provider.
2. Your device displays network or service error messages
• When you are in areas with weak signals or poor reception, you may lose
reception. Move to another area and try again.
• You cannot access some options without a subscription. Contact your
service provider for more details. The touch screen responds slowly or
improperly
3. If your device has a touch screen and the touch screen is not
responding properly, try the following:
• Remove any protective covers from the touch screen. Protective covers
may prevent the device from recognizing your inputs and are not
recommended for touch screen devices.