No Luck flashing WaspOS

[MadHatter]

Hello all,

alright I read the wiki concerning flashing wasp Os thoroughly. 
But in the process already the first step doesn't work:

I use daflasher. The device is recognized instantly. But when I try to send dafitbootloader23 Hacked.bin
Daflasher says that this is no bin file.

I downloaded the bootloader several times. It is always the same.

Can someone help me here?

Thanks and take care!