You have to change the boot priority from uefi bios and set it to hdd/ssd and boot fedora.
If that did not work show us a picture of boot priority from your bios.
You don’t need to disable secureboot, secure boot is suppoted in fedora and ubuntu opensuse etc so you can turn secure boot on with 3rd party CA
And make sure that you have not installed fedora on hdd if that maybe the case and you did not installed it on emmc so it won’t boot set hdd as 1st boot and try.