Boot into Recovery Mode (Volume Up + Bixby + Power from an off state) and select Wipe Data/Factory Reset , then reboot.
If you have an unlockable variant (SM-G9600 or Exynos), follow these steps to ensure a high-quality, safe unlock: unlock bootloader samsung s9 snapdragon high quality
: Services like Samsung Pay and Secure Folder are disabled forever. Boot into Recovery Mode (Volume Up + Bixby
While booted into the combination OS, reconnect the phone to the PC. SM-G960U1 (US Unlocked)
SM-G960U (US Carrier), SM-G960U1 (US Unlocked), SM-G960W (Canada).
Once the exploit script confirms success, boot the phone back into Download Mode. Open Patched Odin again.