Installation of Qualcomm HS-USB QDLoader 9008:
First, double-click on the "Minimal ADB and Fastboot" desktop shortcut, and type the following:
Make sure that your device is connected properly and your device will be recognized by ADB like this
After successfull installation, the Device Manager should show USB Devices: ADB Interface
Right click on the ADB Device and Update driver using the downloaded Qualcomm Drivers.
Turn on Mi Flash Beta
Turn off your phone
Use the special engineering flash cable, hold the button on the cable and plug to Mi5, then wait for 3 seconds then release the button.
This disables the phone from charging, because natural reaction of phone when plugged to a USB port while off is to charge.
Remember to use the USB port at the back of the PC so that its directly connected to the motherboard.
Your phone will be detected as COM3 or COM4
Load, Mi Flash Beta and select the extracted folder which looks like this D:\gemini_global_images_6.5.30_20160516.0000.22_6.0_global
Select Clean All at the bottom right
Then Click refresh icon and see if your phone has been connected,
Then Click FLASH to proceed
It will look like this upon flnished flashing
Reboot and enjoy your Global Rom.
Thanks to @feds64, @FKSGS2, @BharatG, @Muz_paray, @technoking2020
for his help in making this guide possible.