Samsung GT-C6712LKAAFG Troubleshooting, Your device displays network or service error messages

Troubleshooting

When you turn on your device or while you are using the device, it prompts you to enter one of the following codes:

Code	Try this to solve the problem:
	When the device lock feature is enabled,
Password	you must enter the password you set for the
	device.
	When using the device for the first time or
PIN	when the PIN requirement is enabled, you
	must enter the PIN supplied with the SIM or
	USIM card. You can disable this feature by
	using the PIN lock menu.
	Your SIM or USIM card is blocked, usually as a
PUK	result of entering your PIN incorrectly several
	times. You must enter the PUK supplied by
	your service provider.
	When you access a menu requiring the PIN2,
PIN2	you must enter the PIN2 supplied with the
	SIM or USIM card. For details, contact your
	service provider.

Your device displays network or service error messages

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When you are in areas with weak signals or poor reception, you may lose reception. Move to another area and try again.

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Troubleshooting

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