Indicates the device has only ever run official, Samsung-signed software. Secure features like Samsung Pay (Wallet) and Secure Folder remain fully functional.

Once the e-fuse is blown, several critical security-reliant features are , even if you return to official stock firmware:

The only official way to restore a device to a status is to replace the motherboard (Printed Board Assembly or PBA). Understanding the Knox Warranty Bit (0x1 vs. 0x0)

Biographical and password storage will be inaccessible.