It`s takes about 15-20 Minutes.
Take out battery and insert it and tried again.

USB Flash Driver Installation - Guide

Connect your phone to xs++ and copy here your phones log.

XS++ 3.1 Guide-Flashing,Customizing,Recovering

Flashing a GDFS that did not originally come from that exact handset may have severe consequences, maybe you have bricked your phone.

We will see, when you post your phones log.

Nice day