How to fix samsung galaxy note 9 stuck on set warranty bit recovery screen

Please i need help, i tried to flash a firmware update to my note 9 using odin but it failed. Then the phone showed a blue screen asing to use smart switch. but i went and downloaded another firmware thinking that perhaps it was the firmware that was wrong and tried again and it still failed, this time the phone is stuck on samsung logo with the image of an open lock and a message saying "set warranty bit: recovery" i tried to get into download mode but no way. Please help