troubleshooting

If you are having trouble with your mobile phone, try these troubleshooting procedures before contacting a service professional.

While using your phone, the following messages may appear:

Message

Try this to solve the problem:

Please insert

Ensure that the SIM or USIM card

SIM card

is installed correctly.

 

When the phone lock feature is

Phone lock

enabled, you must enter the

 

password you set for the phone.

 

When using the phone for the first

 

time or when the PIN requirement

PIN lock

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.

a

 

Message

Try this to solve the problem:

 

Your SIM or USIM card is

 

blocked, usually as a result of

PUK lock

entering your PIN incorrectly

several times. You must enter the

 

 

PUK supplied by your service

 

provider.

 

 

Your phone 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.

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Samsung SGH-F480ESZDTM, SGH-F480ESIDTM, SGH-F480PWIDTM manual Troubleshooting