Note 3 Engineer Mode Kodu. If you cant find it there please ask in this thread. Redmi note 3g user here.
In device manager your phone should be identified as qualcomm hs usb modem 9091 or similar. If you cant find it there please ask in this thread. Using these codes you can enter samsung engineering mode test the network diagnose the hardware and get key information about your samsung phone to galaxy tab.
Taping on kernel version 4 times will make your entry to the engineering mode or the debug mode in which you can see automatic test single item test test report sw add hw version and device view.
But the touchscreen test failed to close once i started it. Turn off your device hold volume button and turn on. You can complete it again and again sometimes it clears your line if you cross it but i managed to complete it fully you cannot quit it. Usually you have to dial a secret code such as.