how can i install unbranded note 4 firmware over branded please help


New member
Jul 25, 2015
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basically i had a galaxy note 4 unbranded which was great , i then sold it and bought the iphone 6 (BAD MOVE).. cutting to the point i bought a second hand note 4 that is unlocked but 3 branded.. it seems a lot slower to do everything especially downloading apps and music etc.. can anyone tell me the simplest way of putting the basic note 4 unbranded firmware on instead..
i am on android 5.0.1
model sm-n910f
current baseband n910fxxu1boc3
please be as simple as possible not done this before