Copy files and images from samsung s3 even when its almost turned off First of all my samsung s3 is stuck on the samsung logo splash screen so i'm thinking of doing a factory restore , that's not an issue for me but i want to copy images and videos at least from the inner memory not the sd card to my laptop or pc is there any way to do that ? i seriously do not wanna lose those pictures .
A factory reset will not wipe the sdcard partition. In most cases, you can restore some application data like that (ex: WhatsApp). This might differ for an S3 but I know this is the behavior on Nexus devices.

Another option if you have a custom bootloader is that you might be able to access the internal memory using adb shell.