I have installed the application from the factory where i work, on the image .ffu
Then, i have installed the windows PE on the hard drive, and added the .ffu image on the root of it.
At least, i have put the hard drive on the computer, who have launched a cmd console, i have done this command for launch the .ffu file :
dism.exe /apply-image /ImageFile:Flash.ffu /ApplyDrive:\.\PhysicalDrive0 /skipplatformcheck
Then, i have turn off the computer, and put out the hard drive
I have launched the computer, a Windows 10 IoT page came like this :

And after, i have a black screen.
I'm turning off / on everytime the computer, but i have still the black screen.
Why ? What Am I supposed to do ???
I'm so confused, i can do nothing and i'm at 99 % of my project now ...
I need your help as quick as possible, because the app from the factory has to work with this Windows 10 IoT Core!