Hello,
as i mentioned before, security version of your SM-G960F for repair IMEI/patch CERT is unsupported at this moment. The team are working on solutions, wait for announcements.
Version G960FXXU7CSI6 now tested and working only for function "read unlock codes".
To see all supported phones and firmware versions up-to-date better is to check in our official website. Resellers not always can present latest information and updates. 
