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Data Not Transferred After Switching to a New Device Because Sync Did Not Start? Check This First Before Anything Else

If your data is missing after switching to a new device, the issue is often not the transfer itself.

In many cases, the setup or restore step has already completed successfully.

The real problem is that sync never started afterward.

If sync does not begin, your device has no way to load your actual data.

How to Tell If This Is Your Case

You are likely facing a sync issue if:

If this matches your situation, the data is not lost — it has not been loaded yet.

Sync depends on multiple conditions being correct at the same time.

If any of these fail, the process may not begin at all.

If you are signed into a different account than the backup source, the device has nothing to sync.

On both iPhone and Android, individual data types (photos, contacts, messages) require manual sync activation.

Battery saver or system limits can delay or completely block sync initialization.

Even if connected, an unstable network can prevent sync from starting properly.

Before retrying anything, verify the following:

If any of these are incorrect, sync will not start.

Follow this order to avoid repeating the same issue:

In most cases, data begins to appear once sync is properly triggered.

Restore and sync are not the same process.

Restore prepares the device.

Sync actually brings the data.

If the second step never starts, the device will remain empty.

If data is not transferred after switching to a new device because sync did not start,

the setup is complete, but the data-loading process never began.

Fix the account, enable sync, and remove restrictions first.

Once sync starts, your data will begin to appear.