Red led blinking problem dreambox one

Hi everybody. Since i put a wrong firmware in my dreambox one accidentally it start but with black screen and and i red light. I’ve tried to fix it with putty but i access is denied. Any solution will be welcome.

Thanks bro for the reply. I :)will try this solution. Regards.

Hi Aggeszka, can you tell me how to use those files to reinstall rescue boot on my device ? Regards.

Ok . Thanks for the reply.

Ok