I am sorry Henklbr. I identified the software at: [ Login above or register to see download links. ]
Then downloaded using Frija with USC at CSC. Version: N950USQS5DSF5/N950UOYN5DSF5/N950USQS5DSF5 and
File: SM-N950U_1_20190612160227_skpg29u1vl_fac.zip.enc4s as was shown in Frija.

My concern was that I flashed the firmware with CSC of USC, whereas it appeared to be SPR.

Could you help me in finding and flashing an unbranded firmware for SM-N950U?

Many thanks