Read the guide on returning to stock, choose the firmware from Sammobile.com that matches your country. The original firmware is irrelevant.
Questions go in the q&a forum, report your own post and ask a moderator to move it for you.
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Note: This quote doesn't automatically apply to everyone, decide for yourself if it might apply to you.
Originally Posted by justruss
What has this place become?
It's essentially a few people graciously answering the same repeating of immature, lazy, demanding questions from the masses.
Nobody searches. Nobody reads the first posts or titles of threads. Nobody even looks at posts a couple above their own.