Please Help in my problem

[prince001]

I do every thing for install jailbreak with checkra1n via USB 

BUT 
when i start my pc DELL PRECISION M4500 

i stop in that screan 


https://uphinh.org/image/whatsapp-image-...029.M4yGnD

and after 2 min waiting have  STILL WAITING ROOD DEVICE

Please any help

[GeoSn0w]

Waiting for root device usually means that the USB flash drive you try to install from has been plugged into a USB 3.0 port. Make sure it's in a USB 2.0 port (3.0 is blue, 2.0 is black).

Also, if you try to install High Sierra you need a USB Patch.

Also, disable fastboot on Bios.

[prince001]

Waiting for root device usually means that the USB flash drive you try to install from has been plugged into a USB 3.0 port. Make sure it's in a USB 2.0 port (3.0 is blue, 2.0 is black).

Also, if you try to install High Sierra you need a USB Patch.

Also, disable fastboot on Bios.

https://www.youtube.com/watch?v=xAkE-Qg7EKo


Thank you for reply me 
i did make video and please see it and tell me what is wrong

[GeoSn0w]

Video unavailable.

[prince001]

Video unavailable.

https://b.top4top.io/m_1465hhusm1.mp4



this is other link for the video