1.Install your phone driver.
2.Enable superuser access in SuperSU if you have disabled it.
3.Go to: Setting -> Developer Option, make sure you turn on "Developer Option" on the top and turn OFF "USB Debugging"
4.Open terminal emulator (install from google play), type the following command one by one:
Code:
Su
setprop persist.usb.eng 1
you see two commands, after every command you should push enter
5.Turn on "USB Debugging" under "Developer Option"
6.Connect your phone to PC via USB. Windows should found a few new hardware, wait until all driver installation fail.
7.Open "Device Manager" in "Computer Management", you should see ports (com & lpt). Click on that .and see that it is mentioned your device with a name with COM+ (a number) for example COM16
8.Go to QPST and if you see COM16, your system recognized your phone. If not choose (ports) Tab, and then (add new port). And in new window and in the sections of (port
![Smile :) :)](/styles/smilies/google/smilie.png)
and (Port label
![Smile :) :)](/styles/smilies/google/smilie.png)
you should write the port name (COM16) and finally (OK)