Keep the device screen awake and instantly re-verify RSA fingerprint confirmations when prompted by your PC host.
Connect the powered-on Galaxy S7 to the PC using the USB cable.
Watch your phone's screen closely; a Magisk prompt will appear demanding root elevation. Click .
Follow these phases sequentially. Skipping steps can result in a soft-brick or a persistent "Not Registered on Network" error. Phase 1: Flashing the U8 Combination Firmware