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Why is my screen all white i can go to my apps but i cant see nothing
Probably the screen needing to be replaced, was the screen cracked or went bad after drop? Or maybe liquid damage and that happened afterwards? In case it is the screen you can fix it yourself by using this guide here and the link to buy the part: Guide for screen replacement: iPhone 4S Screen Replacement Where to buy part from iFixit store: iPhone 4S Screen
This is whats known as the white screen of death. Attempt a reset by holding the power and home button down for 10 seconds to do a reboot The apple logo should then appear on the screen if everything worked correctly. If not you may need to attempt a full restore. Hope this helps. Stephen CPR Roseville