Hii there..Make sure you have the samsung drivers installed on your PC. That might fix the issue. Also when you connect your device to a pc make sure that you enable TRANSFERRING FILES.

Ok well. Assuming that you are new to ADB and FASTBOOT I will explain the complete process.( GO TO SETTINGS AND ENBALE USB DEBUGGING FROM DEVELOPER OPTIONS BEFORE BEGINNING THE PROCESS)1) You have to install Samsung drivers to your PC. You can do tha...

Hey..Did you try entering recovery mode using ADB?

Try moving your apps and data to an Sd card or a cloud storage(in case of files).

You can use Parallel Space. Hope Samsung Will come with some workarounds in a future update