Samsung SGH-D710 User Manual page 279

White lines appear on the display
• This may happen if you turn on the Smartphone after
a long period of time of power-off or after removing
the battery without turning off the Smartphone. This is
not related the Smartphone's life or performance. Wait
until the to display functions correctly.
"Locked" displays
• The automatic locking feature has been enabled. You
must press the
before you can use the Smartphone. To disable the
feature, go to
and set
Auto lock period
"PIN code" appears
• 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 is enabled. Each time the phone
is switched on, the PIN has to be entered. To disable
this feature, go to
and set
PIN code request
"PUK code" appears
• The PIN code was entered incorrectly three times in
succession and the phone is now blocked. Enter the
PUK supplied by your service provider.
soft key and enter the lock code
Unlock
→
Settings Security
to
None
→
Settings
to
→
Phone and SIM
.
→
Security Phone and SIM
.
Off
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