My Samsung Galaxy s3 Neo Is stuck on Odin Mode.

Hello everybody,
About a week ago I tried to install a new rom on my Android device, the Cyanogenmod.
Accidentally I went in Odin mode, but there was no way I could get out of it. I tried everything. I tried to take the battery out and then put it back, to take out the sim card and the memory card, I tried to press and hold power + volume down, Power + volume up, and Home + power + volume up/down. But there was nothing do.
In Odin Mode it said:
Could not do normal boot
ODIN MODE
PRODUCT...

My Samsung Galaxy s3 Neo Is stuck on Odin Mode.

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