Since the A037F uses an MTK processor, technicians often use Brom Mode (Boot Room) to read/write the RPMB partition or clear the Knox Guard flags directly.
Samsung A03s (A037F) KG Lock Remove By Unlock Tool (UFI Box) samsung-a037f-u1-kg-remove-permanent-remove-file
If the device is accessible, enable USB Debugging . If locked at the setup screen, enter Emergency Mode and use the code *#0*# to enable ADB. Since the A037F uses an MTK processor, technicians
The tool will communicate with the chipset to change the status from Locked to Completed or Broken . samsung-a037f-u1-kg-remove-permanent-remove-file