NTT docomo Optimus LTE L-01D Instruction Manual page 115

PIN unblocking key (PUK)
The PIN unblocking key (PUK) is an 8-digit number
used to unblock the PIN code. You cannot change it by
yourself.
• If you enter the PUK code incorrectly ten times in a
row, the UIM will be locked. If this happens, please
contact a docomo Shop.
Enabling UIM's PIN code
a
From the Home screen,
u "Location & security"
b
"Set up SIM/RUIM card lock"
• The "SIM/RUIM card lock settings" screen
appears.
c
"Lock SIM/RUIM card"
• Set the PIN code on the "Lock SIM/RUIM card"
screen.
d
Enter PIN code and tap "OK"
• You are asked to enter the PIN code when the
terminal is powered on.
Changing PIN code
a
b
c
u "Settings"
d
e
f
From the Home screen,
u "Location & security"
"Set up SIM/RUIM card lock"
• The "SIM/RUIM card lock settings" screen
appears.
"Change SIM/RUIM PIN"
• The "SIM/RUIM PIN" screen appears, and you
are prompted to enter the PIN code.
Enter the current PIN code, and tap
"OK"
• You are prompted to enter the PIN code in the
"SIM/RUIM PIN" screen.
Enter a new PIN code and tap "OK"
• You are prompted to enter the PIN code again in
the "SIM/RUIM PIN" screen.
Enter the same PIN code that you
entered in step 5 and tap "OK"
• The PIN code is changed.
u "Settings"
113
Settings