Once you turn on full disk encryption, the phone will reboot once and begin to encrypt the entire filesystem in the background. Further reboots will require that you input your FDE password (which can be different from your lock screen password/PIN) in a minimal rootfs-based UI.
Once you turn on full disk encryption, the phone will reboot once and begin to encrypt the entire filesystem in the background. Further reboots will require that you input your FDE password (which can be different from your lock screen password/PIN) in a minimal rootfs-based UI.