Iphone 4 screen blinking / flashing

[vix2000]

For a few weeks my screen has been flashing on and off. I have tried soft and hard reset but its no different. Anyone else had this please?

[Mes]

Uninstall recent Cydia tweaks and disable themes.
If it's under warranty or Apple Care, take it in for repair.

[vix2000]

No warranty I'm afraid. Just ran out august!!! Although I did get another shortly after as there was a shadow on the screen. Will the warranty run from the replacement date or original purchase date, does anyone know, please?

[805 93003]

iPhone coverage is 90 days after the Replacement or your Original Warrany, which ever is longer. In your case that would be 90 days since you got the Replacement iPhone. You should still be covered. Good luck.