Install I9300XXEMB5 Official 4.1.2 JB on Samsung Galaxy S3 I9300

Those of you might already installed the leaked Android 4.2.1 Jelly Bean i9300xxufmb3 and found something a little bit annoying, you can try to restore back to official 4.1.2 I9300XXEMB5 which is rather very smoother than the leak version.  Those who never tried this latest update, you can manually upgrade too. The

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