OH NO

I appear to have lost all my photos on my phone except for 9. How this has happened I don't know. I cannot explain it. I don't think I could have deleted all three folders at once. I tried an app called disc digger- wouldn't work 'cos my phone is not rooted and to root it will delete all my pictures anyway. Rooting your phone invalidates the guarantee. Alternately I can connect a wire and try to recover them by attaching the phone to the computer- but that is very risky. So I am just making sure that in future I back them up more.

Update- just remembered changed my sd card recently and saved the content on my computer so I have most of the photos- yea. I will have a fiddle around with the sd card and see what happens.