M18x r2 no post after bios modifications

[Gewily]

Hello I have the same problem with my m18x r2 that happened to many before . and as I just bought bough the device two days ago and it's my first time using alienware device I had problem running it with gtx 1070 and I changed few settings in bios that made the device dead to me . starting for few seconds then shutdown . blindflashing never worked I tried many times . so I have to go with your method with the dumb for SPI Rom chip . will appreciate if anyone has the dumb that I can use to fix this . or if there is any other solution to this