@Gerhard sorry for the trouble, but we ask all members of the community to use English. Feel free to use translation software (but please note that you've used translation software since it may be hard to distinguish "AI" with machine translations).
The original post (translated by Google Translate):
Can anyone help me? I want to transfer Grapheneos from Linux to my phone, the phone is ready and plugged into USB but the Unlock Bootloader and Download Release buttons are grayed out and not active. What can I do?