Advanced Device Locking Criteria

A method comprising:

• retrieving, with a configuration engine of a UE, a plurality of bits from a first entry on a subscriber identity module (SIM) installed in the UE;
• parsing, with the configuration engine, a first group of one or more bits from the plurality of bits;
• associating, with the configuration engine, the first group of one or more bits with a first value in a SIM configuration;
• parsing, with the configuration engine, a second group of one or more bits from the plurality of bits;
• associating, with the configuration engine, the second group of one or more bits with a second value in the SIM configuration;
• and
• comparing the SIM configuration to a UE SIMLock configuration to determine if the UE and the SIM are compatible;
• wherein the SIM configuration comprises a first number of values;
• wherein the UE SIMLock configuration comprises a second number of values;
• and
• wherein, if the first number is smaller than the second number the UE and the SIM are determined to be incompatible.

A method comprising:

• retrieving a plurality of bits from a first entry on a UE SIMLock configuration;
• parsing a first group of one or more bits from the plurality of bits;
• associating the first group of one or more bits with a first UE SIMLock configuration value;
• parsing a second group of one or more bits from the plurality of bits;
• and
• associating the second group of one or more bits with a second UE SIMLock configuration value;
• wherein parsing a first group of one or more bits from the plurality of bits comprises parsing a single bit from the plurality of bits;
• wherein associating the first group with a first UE SIMLock configuration value comprises associating the first group with a brand for a carrier;
• wherein a digit of 0 or 1 for the first group is associated with a first brand;
• and
• wherein the other digit of 0 or 1 is associated with a second brand.