Preventing accidental activation, Clear sim card barring – Siemens M75 User Manual
Page 19
Security
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C
¢
T
¢
Security
¢
PIN codes
¢
Select function.
Change PIN2
(Display only if PIN2 is available)
Proceed as for
Change PIN
.
Chg.phonecode
(Change phone code)
You define the phone code (4 to
8 digits) when you call up a phone-
code protected function for the first
time (e.g.
Direct call
then valid for all phone-code pro-
tected functions.
Following the third unsuccessful at-
tempt, access to the phone code and
the functions that use it is denied. If
this occurs, contact Siemens Service
Clear SIM card barring
If the PIN is entered incorrectly three
times, the SIM card is barred. Enter
the PUK (MASTER PIN) provided
by your service provider with the
SIM card in accordance with the in-
structions. If the PUK (MASTER PIN)
has been lost, please contact your
service provider.
Preventing accidental
activation
Even if PIN control is deactivated
(page 17) confirmation is required
to switch on the phone.
This prevents accidental activation
of the phone, e.g. when you are car-
rying it in a bag or when you are trav-
elling in an aircraft.
B
Press and hold.
§OK§
Press. The phone switches
on.
§Cancel§
Press this key or take no
action. The phone does
not switch on.