Procedure
To connect GT-S7275R phone you have to perform the following steps:
1. Disconnect USB cable from phone.
2. Go to Menu->Settings->More->About Device.
3.Tap on "Build number" 7 times to enable developer options.
4. Go to Menu->Settings->More->Developer options.
5. Turn on "USB Debugging" option.
6. Go to dial window.
7. Enter "*#0808#" number.
8. Select "DM+MODEM+ADB".
9. Press Home button.
10. Go to dial window.
11. Enter "*#9090#" number.
12. Set "Diag config" to "DM/DUM over HSIC" value.
13. Restart phone.
14. Press "Read Info" in software.
