Preventing accidental activation, Clear sim card barring – Siemens M75 User Manual

Page 19

Security

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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

, page 27). It is

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

(page 128).

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.

Press and hold.

§OK§

Press. The phone switches

on.

§Cancel§

Press this key or take no

action. The phone does

not switch on.