iPhone 16 Data Transfer Stuck on “Preparing for Transfer” and Storage Issue on iPhone 11

"iPhone 16 Data Transfer Stuck on 'Preparing for Transfer' and Storage Issue on iPhone 11: I recently purchased a new iPhone 16 and tried transferring data from my iPhone 11 (64GB). I followed all the steps, but the process keeps freezing on “Preparing for Transfer.” I even left it for six hours, yet it remains stuck on the same screen[...]."

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iPhone Stalled at Transfer:

Factory Reset your NEW iPhone:

Being you are stuck on this, I'd say back up your new iPhone (if necessary) to a computer > reset your new iPhone to Factory Settings > then, try this once more, this time using Quick Start.

"iPhone 16 Data Transfer Stuck on 'Preparing for Transfer' and Storage Issue on iPhone 11: [...]the storage bar doesn’t display the storage categories and only shows a grey bar with the word 'sizing.'[...]"

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This is Expected. Wait it Out:

According to Google AI: iPhone storage categories and only shows a grey bar with the word "sizing."

"An iPhone storage bar that is all grey with the word "sizing" usually indicates that the operating system is recalculating the storage data. This often occurs after a software update, a large data transfer, or restoring from a backup. The issue can resolve itself after a few hours, but if it persists, you may need to take action"