Question: When does the location update attempt counter reset in a mobile station?
Option 1: Only when the mobile station is powered on or a SIM/USIM is inserted.
Option 2: In multiple scenarios, including successful completion of a location updating procedure, rejection with specific causes, and certain network-initiated procedures.
Option 3: When the mobile station enters a new location area or when timer T3212 expires.
Option 4: Only when a new PLMN is selected.
Explanation: The location update attempt counter resets in various scenarios to prevent excessive attempts, including successful completion of a location updating procedure, rejection with specific causes (#11, #12, #13, #15 or #25), and certain network-initiated procedures like GPRS attach or detach. This ensures efficient handling of location updates while preventing unnecessary attempts that could lead to congestion or errors in the network.