Sorry, I don't speak English and maybe I'm not explaining myself well, ADB will use it well, I can restart the phone with it and enter recovery, if I try to enter download mode the red letters appear and it does not go from there it remains as dead, odin does not recognize the pc neither ADB either, I have to turn off the mobile manually, but it does not enter the dowload mode in any way.
Did you try entering download mode via ADB?
adb reboot download