When Samsung released devices with Android 9 (Pie) and later, they introduced aggressive anti-rollback mechanisms. If you tried to flash:
Most users turn to this version because standard Odin (like the one found on sites like Sammobile ) will fail when trying to flash: odin 3144 patched xda work
Flashing custom firmware or patched software carries inherent risks, including voiding warranties, tripping Knox, and bricking your device. The author and XDA are not responsible for any damage. Proceed at your own risk. When Samsung released devices with Android 9 (Pie)
: Only download Odin from reputable threads on XDA Developers to avoid malware. Proceed at your own risk
If you tried to flash a "patched" file—like a boot.img modified by Magisk for root—official Odin would reject it with an error (often "SHA256 is invalid" or "Secure Check Fail"). The Hero: Real_Pac's Patched Odin
The primary benefit is the removal of the SHA256 checksum check, which frequently blocks modified firmware in official Odin versions.