Does Flashing stock ROM via Odin wipe data?

[NDev]

Hello,

So my Galaxy S6 is stuck in a boot loop and i've literally tried EVERYTHING already and nothing will solve the problem. Safe mode won't work, clearing the cache partition won't work and USB Debugging was turned off so adb wasn't seeing my device either. I also tried Kies and Smart Switch. I am convinced my phone is soft bricked and I need to recover some very important pictures and files from it. At this point my last hope is to flash the stock ROM via Odin and I saw that some people said that they have successfully done this without losing any of their data. Is this possible? If so how do I go about doing it properly?

Thanks for any help!

Phone is not rooted and 100% stock.
Recovery and Download screens are working.

 

[dynomot]

Don't hold me to this. I'm going back to S3 flashing days. If you flashed the exact stock ROM for your phones CSC code then it would not wipe anything at all.