I have to send my iPhone 64GB to repair and I will have to temporary use a 16GB device. The same problem was described in this post, but I am actually struggling to understand how to practically implement the solution, and what are eventually the consequences of these actions. Also another post mentioned something similar, but it relates to an older generation of software.
I backed up my phone on my PC using iTunes (no iCloud), for a total size of about 38GB. I would like to temporary activate my settings on a 16 GB phone without losing the possibility to later restore my full backup on my device once repaired. This would basically mean to restore my settings on the 16GB without transferring all the photos, videos, and other media contents. The mentioned post suggests to " sync it with iTunes or iCloud and move data manually": what does this mean? Could you suggest a guide to do that? Would I lose the possibility to later restore this backup to my phone once repaired?