Question: Upon encountering error '6581' (Memory Problem) while updating EFLOCI with a TMSI value, what action must the Mobile Equipment (ME: Mobile Device) take regarding its network operation mode?
Option 1: Terminate both 2G and 3G operations immediately.
Option 2: Switch to only 4G or higher operation modes temporarily.
Option 3: Retry updating EFLOCI up to a predefined number of attempts before taking further action.
Option 4: Alert the user to free up memory on the USIM (Universal Subscriber Identity Module) card.
Explanation: When the ME encounters error '6581' (Memory Problem) during an EFLOCI update with TMSI value, it indicates a critical issue affecting the device's ability to manage essential network identification information. To maintain network integrity and prevent potential security or operational issues, the ME must terminate operations in affected modes (2G and 3G) as specified, ensuring a controlled response to the memory problem.