How do you delete all your photos on your iPhone 4?
Go to camera role and hit the box with in arrow sticking out of it at the bottom of the screen and then u can check off all the pictures u wanna delete
Photos select all delete
Its easy , There should be An options button and Then click delete , And then check marks will appear on the Photos .. And then tap delete all .
Delete all and then go to your iCloud and do the same