SOURCE: Galaxy Note Teardown (pic heavy) with proof of T-mobile US Support! - xda-developers
and a video teardown for good measure.
so, what about this T-mobile 3G nonsense?
in November 2011 Skyworks announced that they would be providing their Multimode, Multiband (MMMB) power amplifier modules. in their press release they discussed two different chips the Skyworks SKY77606 and the SKY77604. for our purposes here the only difference we need to worry about is the SKY77604 support's T-mo's 3G and the 77606 does not. up until now nobody knew which of the two chips the Note was using in it. you can find the press release Here
if you can't see which one i'm talking about
it's hard to see. but the number on the top row says SKY77604. all we need now is the proper Modem/software modifications to enable 3G.
big thanks to XDA.cn for doing the teardown. you can find the original pictures here. Clicky
you can find detailed schematics and information for the SKY77604 here Clicky
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Thanks for posting this one and also thanks for adding video for better understatement...