how do you know you are in the telus bootloader once you have installed the rom?
you will know you are in the bootloader if you hold power + camera and hit the soft reboot, it should take you to the olipro bootloader, if that doesnt, then maybe the telus rom does uninstall the bootloader. i'm not an expert in how they work, but
afaik i didnt think rom updates update bootloaders.