Tap seven times until developer mode is active. Go back to the main Settings menu, enter Developer Options . Toggle on USB Debugging . Step 2: Boot into Download Mode Turn off your Galaxy S9 completely.
(SM-G960U/U1/W) are notorious for having permanently locked bootloaders with no official or easy bypass. Feasibility Review by Model International Snapdragon (e.g., SM-G9600 - China/Hong Kong)
Flash the latest Magisk zip file through TWRP to patch the boot image and grant root privileges.
These models have a completely locked bootloader with no official "OEM Unlocking" toggle. Unlocking these devices requires specialized third-party exploit tools (such as the historical "Sampwnd" or "Combo Firmware" methods) and specific, vulnerable bootloader versions (usually Binary/Bootloader Revision 1 or 2).
Snapdragon models often rely on a specialized version of TWRP called SafeStrap, which works alongside the locked bootloader hardware by hijacking the system partition. Step-by-Step Guide to Exploit the Snapdragon Bootloader
Go back to the main Settings menu and open . Enable USB Debugging . Step 2: Boot into Download Mode Power down your Galaxy S9 completely.
The required flashing tools run natively on Windows.
Tap seven times until a toast message says "Developer mode has been enabled."
Unlocking the bootloader on a Snapdragon Samsung Galaxy S9 is not a task for the faint-hearted, but for the determined enthusiast, it's a rewarding process. Here's a final summary of your best options: