Knox fuse blown. I posted some days ago on my phone been rooted. I used this app, which is a root app to check my Knox version.. it shows 0x0 which means
Fake the Knox counter to show 0x0 in Download mode | XDA Forums
How check warranty status in SAMSUNG G950F Galaxy S8 phone?, how to - HardReset.info
Root Samsung Devices Without Triggering KNOX 0x1 (How To Guide) - NaldoTech
How to RESET KNOX to 0x0 (0) under a minute! [100% WORKING WITH PROOF] - YouTube
How check warranty status in SAMSUNG G950F Galaxy S8 phone?, how to - HardReset.info
Why can't the Samsung Knox counter be reset? Is it a hardware or software flag? - Quora