Samsung GT-S5253 Troubleshooting, Your device displays "Service unavailable" or "Network error

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
	when the PIN requirement is enabled, you
PIN	must enter the PIN supplied with the SIM
	card. You can disable this feature by using
	the PIN lock menu.

Code	Try this to solve the problem:
	Your SIM card is blocked, usually as a result
PUK	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 card. For details, contact your
	service provider.

Your device displays "Service unavailable" or "Network error"

•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.

110Troubleshooting