Re load the bootloader on uc5550

Somehow I think I lost the bootloader from my uc5550. The links to the documentation are no longer active (??0 Need guidance

the link is
https://docs.ghielectronics.com/software/tinyclr/loaders/stm32-bootloader.html

results in 404

link

https://docs.ghielectronics.com/hardware/loaders/stm32-bootloader.html

or direct link of bootloader
http://files.ghielectronics.com/downloads/Bootloaders/UC5550%20Bootloader%20v2.0.5.dfu