Search for "Samsung KG Unlock ADB Method" on YouTube for visual walkthroughs of the test mode exploit.
This specific hex code means the BROM entry has been permanently "closed" by the hardware efuse. Common Causes: brom disabled by efuse 0x146 best
For technicians: Only an authorized EMI authentication file or direct eMMC programming (JTAG/ISP) can bypass this — and that requires factory-level credentials or hardware intervention. The Silent Sentinel: Understanding BROM Disabling via eFuse