My nokia 6233 get a white screen when the calculator is opened...?

Mudith

New member
I have a Nokia 6233 phone and it has a slight problem.When I press the open button to open the calculator, it makes the whole screen turn white color and get stuck for about 3 minutes.After sometime the screen slowly turns to normal condition.
My phone still has the factory firmware and I've never flashed it.What might be the problem?
Thanks allot!
 
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