How do I unroot my phone?

[AndroidS3]

I need to unroot my device because ill be taking it into my carrier soon as my speakers are becoming seriously croaky, ive got triangle away apo but what else do I do to completely put it to stock again 4.1.2?

 

[yogioz]

EDIT: [ROOT] Framaroot, a one-click application to root some devices - xda-developers

Search XDA for Framaroot app...sorry I dont have the link handy.

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