Now for UMA!
**WARNING*** You can severely mess up your device by changing settings in these screens. Be sure you are comfortable with the procedure before attempting.
1. Download the certificates for TMobile from here: (use the links in the second post) http://www.port3101.org/port-3101-be...tificates.html
2. Now you'll need to unlock your engineering screen. To do this click alt + rt shift + H on your keyboard to get to the "Help Me" screen and fill in the info from that screen into the key generator at the site below. Don't back out of this Help Me screen until you enter the code and get the new menus. If you back out you'll get different uptime and you'll have to re-enter the info and get a new code:
You'll need the PIN, App Version including the (xxx), and the uptime without the "secs". Enter that info and choose the amount of time you'd like to keep the screen available.
Zibri's Blog: Hidden things are usually the best
Once you get the code, simply type it on that same screen. Use alt when typing numbers and don't use caps with letters. You won't see anything being typed as you enter it. Once the code is accepted you'll see a new menu list. If not, go back and make sure you are entering all the info correct and try again.
3. Once the new menu appears, click on "Mobile Network Engineering Screens"
4. Click on "Utilities"
5. Click on "Session Manager"
6. Press the menu key (left of trackpad) and select "UMA Options"
7. Press the menu key and select "New"
8. Enter the following:
Display Name: T-Mobile
Operator Name: T-Mobile
9. UNCHECK "Use default UNC address"
10. At "Provisioning UNC address:" enter: punc.t-mobileuncs.com
Leave Provisioning UNC port: 14001 as is.
11. UNCHECK "Use default SEGW address"
12. At "Provisioning SEGW address:" enter: psgw.t-mobilesgws.com
13. Under "SEGW certificate" choose the TMobile Engineering certificate downloaded in the Step 1.
14. Under UMA protocol version: use "UMA v. 1.0.3"
15. Save your settings.
Reboot the device. UMA should now be enabled!