Nokia C6-01 User's Guide download pdf (Page 119)

The personal unblocking key (PUK) code and the universal personal unblocking key

(UPUK) code (8 digits) are required to change a blocked PIN code and UPIN code,

respectively. The PUK2 code (8 digits) is required to change a blocked PIN2 code. These

codes are not supplied with the SIM card. Contact your local service provider for the

codes.

Troubleshooting

Restore original settings

If your device is not working properly, you can reset some settings to their original

values.

1 End all active calls and connections.

2 Select Menu > Settings and Phone > Phone management > Factory settings >

Restore.

3 Enter the lock code.

This does not affect documents or files stored on your device.

After restoring the original settings, the device switches off, and then on again. This

may take longer than usual.

What to do when the memory is full?

If either of the following messages is displayed when you are deleting several items at

the same time, delete items one by one, beginning with the smallest items:

• Not enough memory to perform operation. Delete some data first.

• Memory low. Delete some data from phone memory.

Move content that you want to keep to a compatible memory card (if available) or to a

compatible computer. If possible, install applications to the memory card, rather than

the device memory.

Message indicator blinking

Q: Why is the message indicator blinking in the home screen?

A: The maximum number of messages are stored on your device. Delete some messages.

The number of messages that can be stored on the SIM card is considerably lower than

the number that can be stored in the device memory. You can use Nokia Ovi Suite to

save messages to a compatible computer.

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Nokia C6-01 User's Guide Page 119