The phone is completely stock. I think what may have happened is the phone cover which has a magnet may have touched the screen and this is the result. Is there a fix? Oh and thankyou for you reply
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Did you go on the Samsung website and download the drivers you need for your phone then kies should recognise it that flash back to stock
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There is an app in the playstore called 'root checker' download that just to make sure your not rooted and also do you have super su installed by any chance?
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