Hi, hosam3099
Team will release new updates soon for improve the stability of mtk modules etc features. but you can try solve problem as follow way also:
1. updates mtk drivers
2. run emt as administrators
3. press "Unlock Bootloader"
4. connect phone in bootrom mode (Turn off the phone, press and hold Volume Up and Volume Down and then connect usb cable)
Best Regards
EmeGSM Team