Disablenavnet - nspiredev500/OSExt GitHub Wiki

If you don't have the settings module, it disables the os's ability to receive files and os-upgrades, view your (and other calculator's) files via usb. If you have the settings module, it leaves this enabled by default, but you can change it to disable it and to only allow it for the next boot (because once navnet is disabled, it can't currently be re-enabled without a reboot). Currently, if you want to disable navnet in the settings you have to reboot and restart OSExt for it to take effect.