Possible To Install SGH-I747 Firmware on an Unlocked T999?

amfromm

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Feb 26, 2013
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Hello! Long time lurker, I love the forums. I tried searching for this but came up short.

I have an unlocked T999 that I am using with an AT&T SIM (not rooted), I would love to be able to install the latest AT&T firmware extant on an SGH-I747 on my T999 so at least some of the stock bloatware is usable :) (visual voicemail, etc.). Is this even possible? Or would attempting to do so re-lock the phone?