An example electronic device includes a storage circuit, a central processing unit (CPU) coupled to the storage circuit, and a controller coupled to the storage circuit. The CPU is to receive a Basic Input/Output System (BIOS) update image for the electronic device, verify a signature of the BIOS update image, and responsive to verification of the BIOS update image, store a portion of the BIOS update image in the storage circuit. The controller is to obtain the portion of the BIOS update image from the storage circuit, and program the portion of the BIOS update image to a BIOS component of the electronic device.