If you have a Google Account, on your phone, got to Settings>Personal>Backup and reset>Back up my data - I believe that Google Drive on the Note 5 is the same thing as Google Cloud (I could be wrong) - that's what I used on my Note 5 and I am currently running a Samsung Galaxy S7 Active with Nougat and the Backup sends to Google Cloud and works GREAT! Try that and see if that works for you!
NOTE: My Note 5 still works but I don't have a SIM card in it to test things for you!