Can ATT unlocked lumia 830 get data network on T-mobile?

[WPCentral Question]

I have unlocked lumia 830, but I can't get data network. 2G/3G/4G, neither one works.

 

[yxc2010]

Got it. Set APN to fast.tmobile.com. All done!!! Windows 10 doesn't work on APN now, but WP 8.1 works.

 

[Zulfigar]

Got it. Set APN to fast.tmobile.com. All done!!! Windows 10 doesn't work on APN now, but WP 8.1 works.

If you're the original poster, then a little info I found out is that if you get Windows Phone 8.1 working with network before updating, you'll have the network working on Windows 10 (it's what I had to do for my Lumia 920).