If the tool fails to launch the browser, you may need to restart Windows into "Disable Driver Signature Enforcement" mode (usually via F7 in Startup Settings) to allow the tool's custom drivers to load. Troubleshooting "Failed" Errors
Connect the phone to the PC via USB. In the tool, go to the "Samsung" or "FRP" tab and select the MTP Bypass FRP option. samfirm-a.i.o-v1.4.3
and managing Samsung firmware updates without the typical headaches of official channels. According to reviews on If the tool fails to launch the browser,