Just delete your important photos?
No worry! Recover deleted photos in the memory card or USB storage might not be as difficult as one thought (given you have the right tool).
While there are many tools that are free to try, most of them have size limitations unless you pay for the full version.
However, there is a free photo recovery software from Sony.
You can download the software here.
Just go to the Download section. Enter “SF-16NX” as the model name and “12345678900” as the serial number.
Once downloaded the installation file, the installation procedures are straight forward.
It supports all Sony memory cards as well as other brands cards (although Sony does not say so!)