How to choose a firmware before downgrading Andriod version? I have a Note4 which was shipped from the UAE (but I don't live in UAE). The current version of the device is 6.0.1 and I want to downgrade it to 4.4.4 (the stock version). I am having some trouble selecting the right firmware and was hoping if someone could help. 

I came across this: http://www.sammobile.com/firmwares/database/SM-N910C/XSG/ but I don't know which version to choose. My phone's baseband version (N910CXXU1DPC1) is not listed here.

Can I choose any 4.4.4 version and hope it will work on my phone ?
According to this site, this is for Region XEO, which would be Poland, located here.  You can't just choose any version and have it work, and Samsung is known to not allow you going backwards in firmware versions due to a lock in the bootloader preventing this.  You may be able to go back to 5.1.1, but most likely not 2 Android versions backwards, and even going back to 5.1.1 may not be possible.