Samsung Galaxy A52 5G does not start because bootloader was closed

Hello :),

I am asking in the forum because I need help.
I have recently successfully installed iode OS on a Samsung Galaxy A52 5G. Unfortunately, I made a serious mistake afterwards and closed the bootloader again.

Now the phone won’t boot up and won’t respond to anything. What is currently displayed is an error message and the download mode, which I can still open.

My specific question: Is there a way to reopen the bootloader via Odin3? Odin3 recognizes the phone in download mode.

I see this as the only chance to save the phone. But of course I am also open to other possibilities.

Many thanks for your suggestions!

You should be able to flash the stock ROM with odin, and unlock again the bootloader.