Reset Knox Warranty Void 0x1 Back To 0x0 Review
Reflashing official firmware via Odin will not reset the flag. The eFuse remains blown, even after a full stock restore.
Since resetting is impossible, your options are: reset knox warranty void 0x1 back to 0x0
You might find old tutorials discussing "Triangle Away" or various engineering bootloaders (.tar files) that claim to reset the counter. Reflashing official firmware via Odin will not reset