Black screen after boot
After a short visit into a swimming pool a few years ago, my Z5 Compact had difficulties running. I have some data stuck on it since then and I decided to try to retrieve it.
When I power it on, the loading screen appears (Sony then Android) but once it has booted the screen goes off. Sometimes I can see the lock screen for a few seconds, sometimes I don't. The phone vibrates when I put my finger on the fingerprint reader, the same way it would vibrate when you try to unlock it as it would be running fine.
The screen is completely black : neither the dim light nor the screen seem to be working.
I just purchased a MHL cable to be able to plug it to an external screen. There is a signal but it is also completely black.
Does someone have something in mind ? My goal is just to retrieve the data but if I can make it work again I would be really happy !