I have a Sony Xperia U which worked fine. I did not change anything lately.
Today all apps crash on startup. Even Play Store, com.google.process.gapps and android.process.acore. The media gallery seems empty too. Whenever I start something, it crashes, except for opening system settings.
When I connect my phone with my computer the internal storage seems completly empty - so I can't backup anything.
Is there anything I can do to recover my phone and to keep my data like pictures, contacts, ...? *
I tried the save mode, but the erros occur there too.
I tried to boot in Recovery Mode, but all button combinations did not work. I also tried in USB debugging mode using ADB, but that did not work too.
* Since Play Store is not working I can't install any backup tools.