You will break your device by trying to do it your self, these phones are not 1990 nokia phones, these are phones which are sealed with etreme precisions, precisions that i think you do not have specialy if you've never did this before, in addition, you might endup leaving some minor dast inside the lens by the time you finish putting together all the parts if eventualy you arrive to do it. So i will simply advice to spend so $ and have a good service with a guaranty.
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