T217A Galaxy tab 3 Unlock At&t Done...[Reference]
Problem : Need To Unlock From USA
Procedure : To connect SM-T217A 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 "Builds numbers" 7 times to enable developer options.
4. Go to Menu->Settings->More->Developer options.
5. Turn on "USB Debugging" option.
6. Go to Calculator application. Enter "(+30012012732+" number, to get phone dial window.
7. Enter "*#0808#" number.
8. Select "DM+Modem+ADB".
9. Close window.
10. Go to dial window.
11. Enter "*#9090#" number.
12. Set "Diag config" to "[1]DM/DUM over HS-USB" value.
13. Restart phone.
Procedure : To connect SM-T217A 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 "Builds numbers" 7 times to enable developer options.
4. Go to Menu->Settings->More->Developer options.
5. Turn on "USB Debugging" option.
6. Go to Calculator application. Enter "(+30012012732+" number, to get phone dial window.
7. Enter "*#0808#" number.
8. Select "DM+Modem+ADB".
9. Close window.
10. Go to dial window.
11. Enter "*#9090#" number.
12. Set "Diag config" to "[1]DM/DUM over HS-USB" value.
13. Restart phone.
