nhien288 wrote: the storage of Photo on my phone is still enormous (almost 10GB).
Have you turned on "Optimize Storage" at Settings>[your name]>iCloud>Photos? This can reduce your storage to less than 20% of your total.
At Settings>General>iPhone Storage, what does it say? For instance, mine says 76.64 GB of 128 GB used.
At Settings>[your name]>iCloud, what does iCloud storage say? mine says 110 GB of 200 GB used.
At Settings>[your name]>iCloud>iCloud Drive, is Sync this on?
At Settings>[your name]>iCloud>Photos, what does Manage Storage say?
At Settings>[your name]>iCloud>Photos, have you tried tapped "Sync Now?"
At Settings>[your name]>iCloud>Photos have you turned on "Optimize Storage"
Have you tried a forced restart of the iPad?
Force Re-start iPad
This is different from a simple Power Off. For me, the logo appears way after the Power Off notice.