There are be many people asking questions about black update, but mine, I think may be one of a kind (probably not). Mine is an AT&T Lumia 920, and I flashed with Rogers rom to get GDR2, and I am now enrolled in developers preview. Recently, I switched to T-mobile. I am confused now, who will push black update for my phone, AT&T? I am sure T-mobile wont, coz this phone is not made for T-mobile...
Thanks
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