Samsung SGH-I617 User Manual (user Manual) (ver.f4) (English) - Page 127

General Problems Problem Description Solution The bars next to disappear • If you just turned on your phone, wait for about 2 minutes, until your phone finds the network and receives a signal from the network. • If you are in a tunnel or in an elevator, the phone may not be able to receive the network signal properly. Move to an open place. • This may display when you move between different service areas. It is normal. The display is not clear In direct sunlight, you may not be able to see the display clearly. Moving to a place with different lighting should solve this problem. White lines display on the screen This may happen if you turnon the phone after a long period of disuse, or after removing the battery without turning off the phone. This is not related to the phone's life or performance. The display should correct itself shortly. "PIN code" displays • You are using your phone for the first time. You must enter the Personal Identification Number (PIN) supplied with the SIM card. • The PIN check feature was enabled. Each time the phone is switched on, the PIN has to be entered. To disable this feature, press the Start > More > Settings > More > Security > Disable SIM PIN, and enter the PIN. "PUK Required" displays The PIN code was entered incorrectly three times in succession and the SIM card is now blocked. Enter the PUK supplied by your service provider. Troubleshooting 124