Photos will not sync to iCloud for years and through multiple phones.
My iCloud photos have been stuck on 6% for about 5 years. I already tried resetting and restarting the phone, turning iCloud and syncing off and on again, and turned off low power. I have plenty of available space free (1.5 TB remaining). I tried every single suggestion from previous threads. I left it fully connected to charging and over WiFi overnight every single night for the past 5 years and no progress has been made. I deleted any large videos that could be holding it up. Nothing has resolved the issue. Other iCloud services like calendar and notes are working perfectly fine. I started on an iPhone 11 then the issue persisted when I transferred to my 13 and the issue now still persists on my 16 Pro. I asked the employees at the Verizon store and they said it would be fixed by upgrading the phone but no progress has been made. How do I find where it's getting stuck or how do I fix it? I also already tried using multiple different networks with no success. Without this I can't use the people and pets and other features.
iPhone 16 Pro