iPhone storage

1.

Try to free up iPhone device storage see this Apple articles below:

If you need more space for an update on your iPhone, iPad, or iPod touch

If you need more space for an update on your iPhone, iPad, or iPod touch - Apple Support

How to check the storage on your iPhone, iPad and iPod touch

How to check the storage on your iPhone, iPad and iPod touch – Apple Support (UK)

Clear Other storage on your iPhone or iPad

Clear Other storage on your iPhone or iPad - Apple Support

2.

I bought more storage space in iCloud

Turn iCloud On, see the following Apple articles:

What's the difference between device storage and iCloud storage?

What's the difference between device storage and iCloud storage? - Apple Support

How to use iCloud on iPhone

How to use iCloud on iPhone – Apple Support (UK)

Get help with iCloud Photos

Get help with iCloud Photos - Apple Support

Set up and use iCloud Photos

Set up and use iCloud Photos - Apple Support (IN)

Access and view iCloud Photos on your iPhone, iPad or iPod touch

Access and view iCloud Photos on your iPhone, iPad or iPod touch – Apple Support (UK)

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Do more with your photos

• Transfer photos and videos from your iPhone, iPad or iPod touch.
• Download photos and videos from iCloud.
• Take and manage photos.
• Set up and use iCloud Photos.
• Reduce the size of your iCloud Photos.
• Get help with iCloud Photos.
• Check your iCloud storage.