Question: During a Personalisation cycle for a Mobile Equipment (ME) already network-personalised with code N1, what is a valid addition for the Service Provider (SP) category?
Option 1: N1-SP1
Option 2: N2-SP2
Option 3: Any new code not currently stored on the ME
Option 4: No additions are allowed to an active personalisation category
Explanation: According to the personalisation cycle restrictions, when adding new codes to an existing personalisation data set (e.g., for a Service Provider category), the new codes must be a subset of or directly related to the existing codes. Since the ME is already personalised with network code N1, adding N1-SP1 is permissible as it builds upon the existing authorisation (N1). Options 2 and 3 violate this rule by introducing unrelated or non-subset codes, while Option 4 misinterprets the rule, as additions are indeed allowed under specific conditions.