Time period of iCloud backup
Hello,
I need to restore my phone to a quite old backup from around the end of august, no earlier. This is due to someone else’s contacts and information being on my phone from when I accidentally synced them as I signed into iCloud on a phone with all their apps and information. When I returned to my usual phone, all of that information is now on my phone (e,g. Photos, contacts). I think I need to restore to an learner backup, so I can get rid of all of it, without deleting it for them. However the last backup I made that only had my information, was end of august, i.e. over a month ago. I am worried that if I delete all my data and choose to restore my phone to an earlier backup, that will not be an option since it was quite a long time ago!
please let me know if what I am doing is correct and if I can choose a backup from over a month ago!
thanks
iPhone X