Hey Vilali, thank you very much for your response, but see,my situation is this:
When I plug in my phone (turned off) to my computer, and I check DeviceManager, first I see the yellow triangle with the exclamation mark like shownin this image I posted before, then after 1 second or 2, it goes away. HOWEVER after this entry goes away my phone is NOT listed under Portable Devices like your photo shows.
So they also told me this: "As soon as the preloader usb vcom port appears in your device list, right click on it and select Remove Device and also check to remove its driver as well. Then try to reconnect your phone."
Which I did, as I replied: "Right, done. Now when I reconnect the phone it firsh shows up as an Unknown Device, then it turns back to what it was before (as shown in the photo I posted before), then it disappears again."
So still the same behaviour. First yellow triangle, then it disappears.
So does that means the driver is NOT installed yet? Or just that the phone is not recognized for the first second or two but then it is and that's why that entry in Device Manager is removed?
But if the driver is installed properly, then why is my phone NOT showing up under Portable Devices like yours does?
Also, is there any way to check if my phone is ready for the operation from inside the Flash Tool?