Hi (excuse my poor frenchglish lol)
Spent half a day on that issue and OMG !!!! I finally fixed it. This kind of problem seems to come hand in hand with a flash LED issue that doesent shut down from the dropdown menu. If so, consider that it's not a hardware pb. If not, try to gently press the phone between the LED and the lense, if the image comes back then it's a hardware pb. And of course, it usually occurs after the warranty expires (but planned obsolescence doesn't exist right ?).
Here's what I did for those facing the same problem :
1.First, clear the Camera cache in the settings>Application>camera. Then Clear the whole Application Cache in Settings>Storage and memory>internal memory>(swipe down to) Clear the shared application memory (or smthg like that).
2. Switch off your phone by holding the power button + the volume UP button (NOT the volume down button that makes a screenshot). Then turn it back on by holding the volume down button+the power button until it vibes AND the Sony logo shows up, then wait for it to start completely. Don't worry if the Sony logo disappears while turning on, it came back for me twice before running completey.
This worked for me twice. Hope it works for you too, because this is a great phone.
