User Manual

SIM lock
11-42 Confidential - For internal use 99-137719-D
11.13 SIM lock
This section describes the SIM lock (or personalization lock) interface on the BGAN XL
Radio Module. Three different SIM lock types are supported. It is possible to lock the
user terminal to:
• (2) A specific service provider by using the group identifier of the USIM card.
• (3) A specific corporate SIM card owner by using the group identifier.
• (4) A specific SIM card.
The values (2, 3 and 4) associated with the corresponding type of lock are used later in
this section in the description of the SIM lock interface.
11.13.1 Installation of the SIM lock code
As part of the manufacturing of a terminal that supports SIM lock, a SIM lock code
must be installed on the RM. The SIM lock code is encrypted and stored in write-once
memory on the RM. In order to get access to change the SIM lock settings, the correct
SIM lock code must be entered.
To set the SIM lock code on the RM, the integrator must do the following:
• Write the SIM lock code to .set.password
• Write 255 to .set.password_result
• Read .set.password_result until .set.password_result < 255
• Evaluate result code from .set.password_result. Possible result codes are shown
in the following table.
Parameter name
protocols.umts.pers
onalization
External
access
Type /
Domain
Values
[min;max]
Comment
.set.password w t4 §4 string /
flash
n.a. Set SIM lock code
Must be 32 bytes hex
characters + 0 terminator.
.set.password_result r/w t4 §4 int / ram [0..255] Indicate result of the set
operation.
Table x
Table 11-17 shows result
codes.
Table 11-16: Parameters used to enter SIM lock code