Is it possible to remove branding from an unlocked Lumia 640?

[Windows Central Question]

I have an unlocked AT&T Lumia 640 that I use on my T-Mobile account. Is it possible to remove the AT&T branding? What I mean is the support information, etc. Can I load a T-Mobile firmware package?

 

[xandros9]

I don't think we can reflash ATT phones anymore.