Galaxy s3 dowload mode problem

[Emreeralp]

Hi, I'm new here. my s3 opened the download mode and some warning appeared:

"SOCAAD MODE
Copy binary from socaad
copy binary to emmc

socaad download completed. "

then I shut it off by taking the battery out.
now I can not boot it up at all.

I researched about the problem and something called "hard brick problem" came up. I don't know what to do now. I need a little help please