Troubleshooting - Samsung GT-B7620 User Manual(Extended Usage Guide) User Manual

Troubleshooting

If you have trouble with your device, try these procedures
before you contact a service professional.
When you turn on your device, the following
messages may appear:
Message Try this to solve the problem:
The SIM
card is
missing.
Enter PIN.
SIM card
blocked.
Your device does not show a signal (no bars next
to the network icon)
• If you just turned on the device, wait about 2 minutes
for your device to find the network and receive a
signal.
• You may not be able to receive a signal in tunnels or
elevators. Move to an open area.
• You may be between service areas. You should
receive a signal when you enter a service area.
Ensure that the SIM or USIM card is
installed correctly.
When using the device for the first time or
when the PIN requirement feature is
enabled, you must enter the PIN supplied
with the SIM or USIM card. To disable the
PIN requirement feature, tap Start >
Settings > Basic Settings tab >
Security > SIM PIN, and then tap
next to Require PIN when phone is
used.
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.
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