I have a couple years old Samsung GT-E1200 and when I turn it on, the screen lights up, showing "GT-E1200 Samsung" then it goes black for a second and shows "GT-E1200 Samsung" again and it keeps doing that. The only way I've found to stop it is to remove the battery.
What could cause this? It came out of the blue, after a long phone conversation, I didn't drop it (recently).

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