Eurocom P170HM Neptune - Manual (Page 206)

Modules
7 - 80 3.75G/HSPA Module
7
SIM
This menu allows you to edit the USIM card Personal Identification Number
(PIN) and Enable/Disable the PIN if necessary. Press Apply after making any
changes. A SIM card must be inserted for this function to be activated.
If a PIN code is enabled, the input will be requested during USIM card initialization.
After 3 incorrect PIN code entries the USIM card will be locked, and you will need
to contact your service provider to unlock it.
Figure 7 - 60
Setting - SIM