Preventing Accidental Activation - Siemens M55 User Manual

14
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, according to instructions. If the
PUK (MASTER PIN) has been lost,
please contact your service provider.
Preventing accidental
activation
Even if PIN entry is deactivated, con-
firmation is required to switch on the
phone. This prevents the phone
from being switched on accidentally.
B
Hold down.
Press. The phone
§OK§
switches on.
Security