The Ultimate Guide: How to Unlock Bootloader on Samsung S9 Snapdragon (High Quality & Safe Method)

Step 2: Enable OEM Unlocking

1. Boot your S9 into Download Mode (Power + Bixby + Volume Down).
2. Open Odin on your PC.
3. Load the COMBINATION file into the AP slot.
4. Crucial: Uncheck Auto Reboot in Odin.
5. Click Start.
6. Once Odin says PASS, force reboot by holding Power + Volume Down for 7 seconds. Immediately press Power + Bixby + Volume Up to boot into Factory Binary Mode.

1. Reboot back to Download Mode (the combination firmware requires a hard reboot: Volume Down + Power).
2. In Odin, load the ENG_BOOT_G960U file into the BL slot.
3. Click Start. The screen will flash rapidly—this means the security locks are dissolving.

Samsung Galaxy S9 SM-G9600 Coral Blue 128GB 4GB RAM Gsm Unlocked Phone Qualcomm SDM845 Snapdragon 845 Overseas Electronics Go to product viewer dialog for this item.

High-Quality Post-Unlock Fixes (The "Cleanup")

1. Re-enable Developer Options.
2. Check that OEM Unlocking is now permanently visible and grayed out as “Bootloader already unlocked”.
3. Reboot to Download Mode – you should see: