Blue screen flashes when unlocking Samsung Galaxy S3, any fix?

My Smasung Galaxy S3 Flashes a blue screen when I try to unlock the phone by usin power button or home button. Although it comes once in a time (may be in 1/20 ratio), I guess it will lead to the disaster of the device. Should I contact the Samsung service centre or is it a common issue.

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Gadgets Sep 19, 2013 1 Answer 847 views

Driving mode gets enabled automatically without manual enabling

I bought s3 2months ago and now the Driving mode gets enabled automatically though I haven't enabled it..Donna wats wrong with it.i have even tried factory reset but it was of no use except of clearing all my data. The problem still exists.svoice opens on its on due to driving mode.so I have disable
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Gadgets Jun 11, 2013 1 Answer 246 views