You'll find the at&t boot animation at the start of this thread. It isn't flashable, you just have to move it to the right location manually. It's super easy.
In future please search before posting, that thread took me less than thirty seconds to find. Searching before posting is part of the XDA rules, in fact it's the first (and most important) rule of XDA.
GitHub has become the epicenter of most open source development work that is posted … more
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