Lumia 640 T-Mobile

[Alex Smith21]

Lumia 640 operates on Denim but T-Mobile only support Cyan, how does that work?

 

[xandros9]

I don't understand exactly, where did you hear about that?

There should be no issues, I would disregard where you heard/read that.

 

[TexasLabRat]

I don't understand exactly, where did you hear about that?

There should be no issues, I would disregard where you heard/read that.

^This.

 

[metalchick719]

What? My T-Mobile 925 is updated to Denim.

 

[Alex Smith21]

I have T-Mobile 635 operating on Cyan and received email from Microsoft telling to upgrade to Denim to use windows 10

 

[xandros9]

I have T-Mobile 635 operating on Cyan and received email from Microsoft telling to upgrade to Denim to use windows 10

I wouldn't worry about that just yet since 10 isn't out anyway.

Still, that doesn't say you can't use on or the other