Dedicated Gpu is on black screen Please help!!!....

Nov 1, 2018
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Hi Guys
First of all, I have a laptop Model: ((GT72 2QD Dominator G)) With 2 graphics card one dedicated is GTX 970m 3G and another one is Intel HD 5600

so The thing is I made a mistake and flashed my dedicated graphics bios with a wrong bios


who was for a laptop ((GT72 2QD Dominator)) GTX 970m 6G



and after I flashed it with nvflasher it said successful and want to restart but when I did restart that


I always get black screen when I switch to dedicated graphic



and now I use intel graphic 5600 I need help for this please help me

 
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