MacBook Pro 2018 bricked after Catalina installation

So, after the release of macOS Catalina, I want a clean install of macOS on my MacBook Pro. But something failed in the process, since then my MacBook doesn't turn on anymore. After some research, I've found some FAQ on Apple for restoring my T2 chip. It seems that it has something to do with it, my MacBook shows up in Recovery mode every time I connect it to Apple Configurator 2. Well, I've tried to restore the firmware, but it always fails with the error, shown in the Picture below.

After that, I've tried to redownload the IPSW file for BridgeOS multiple times, but the same error shows up. I've tried to extract the file manually, but it fails either.

Any ideas?