To complete a firmware upgrade on your Ender-5 Pro, follow these steps.
1. Find the firmware you need on Creality's website and download it.
2. Choose the firmware that matches your hardware setup. Unzip the firmware zip file. You should end up with a .bin file.
3. Rename the firmware bin file to firmware.bin
4. Place firmware.bin on the printer's SD card.
5. Shut off the printer.
6. Insert the SD card.
7. Turn on the printer - it should detect the bin file and show a blank screen. When the logo shows up again, the firmware update should be complete.