8700 series:
T-Mobile (United States) - 4.1.0.280/4.1.0.284
Installation Download: Click Here
Installation File Name: 8700_multilanguage_PBr4.1.0_rel280_PL2.0.0.120_A4. 1.0.284.exe
Installation Path: C:\Program Files\Common Files\Research In Motion\Shared\Loader Files\8700-v4.1.0.284_P2.0.0.120
BlackBerry.alx Download: Click Here
Instructions:
1 - Download and install the T-Mobile 8700g 4.1.0.280/4.1.0.284 software from
here.
2 - Delete the Vendor.xml file from C:\Program Files\Common Files\Research In Motion\AppLoader
3 - Rename the BlackBerry.alx file located in C:\Program Files\Common Files\Research In Motion\Shared\Loader Files\8700-v4.1.0.284_P2.0.0.120 to BlackBerry.alx.old
4 - Download and extract the BlackBerry.alx file from
here. This should be extracted to C:\Program Files\Common Files\Research In Motion\Shared\Loader Files\8700-v4.1.0.284_P2.0.0.120
5 - Open Desktop Software 4.1 and update your handheld.
* Note: I chose to go ahead and remove all of the crap they had installed by default, such as the alternate Input Languages and whatnot.