This controls whether the wireless hardware is disabled or enabled(Home Menu displays “Disabled” for network status with the former). This is used by Home Menu for the wireless(Wifi+NFC) enable/disable option under Home Menu settings, for New3DS systems.

NWM module just verifies state fields, and uses SRV:PublishToSubscriber with notificationID=0x206 and flags=0x1 for this NWM command. The input value for this NWMEXT command is only used for verifying with NWM state, nothing more.

NWM itself is subscribed to notificationID=0x206. On Old3DS systems, mcu-module publishes that notification when handling the wireless slider interrupt, and this command isn’t used.