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Bestbuds13 Author

Level 1

4 points

iCloud data is not syncing

My end-to-end encryption data stored in iCloud cannot to used on my new device

iPhone 17 Pro Max, iOS 26

Posted on Dec 10, 2025 9:37 PM

Top-ranking reply

azaksalmarzur28

Level 4

2,368 points

Posted on Dec 11, 2025 1:01 AM

Turn OFF Advanced Data Protection temporarily, then turn it back ON

This forces Apple to rebuild your encryption keys and reauthorize the new device.

On any device already receiving your iCloud data (old iPhone, Mac, or iPad):

Settings → Your Name → iCloud → Advanced Data Protection → OFF

You will receive a warning — this is safe and temporary.

Wait 3–5 minutes

Then re-enable:

Advanced Data Protection → ON

Your new iPhone will now be prompted to rejoin the trust circle.

This is the most reliable fix.

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iCloud data is not syncing

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