I need to extract the photos from the internal memory of my Samsung S5. I've downloaded some software called dr.fone which shows me previews of my files (i think by downloading software onto the phone) so it must be possible but it is expensive for the full version. Are there any free apps which I can find to do this? (All search results give expensive heavily SEOed apps!
Actually firstly when you connect your phone to pc it will show your phone icon and drive but it will empty until you will unlock your phone and that you can't do.
if you have enabled usb debugging than you can backup your files via adb. use following adb command after connecting to adb terminal and listing your device is adb. type:-
adb pull /storage/sdcard0/ C:\to_folder_where_you_want_t0_copy"
Have a great day