Fix Unable to Complete Data Transfer iPhone 16/15/14 [Simplest]

Part 1: Why Is My New iPhone Unable to Complete Data Transfer

But why is the new iPhone 16 unable to complete data transfer in the first place? Well, there could be a few logical reasons for that.

• First and foremost, it’s possible that there’s a system-level bug in the device itself. You see, it’s a new device and unexpected bugs and glitches often end up in new releases. (Apple usually fixes such issues with software updates in the coming weeks.
• Secondly, there could be an issue with wireless connectivity between both your devices.
• It’s also possible that the issue is as simple as the Bluetooth is turned off.

There could be several reasons for this issue. But don’t worry, the troubleshooting methods we’re going to discuss below usually fix all of those.

Related read:

Why Does Transferring to New iPhone 16 Take So Long

Part 2: Fix Unable to Complete Data Transfer iPhone 14/15/16 - Common Tips

Fix 1: Reboot the Old iPhone and Reset iPhone

Some Reddit users report that they were able to fix the iPhone unable to complete data transfer issue with a simple reboot. Plus, a factory reset of the new iPhone 14/15/16 also seems to be helpful. What you need to do is reset your iPhone 14/15/16 and reboot the old iPhone.

To reboot the old iPhone:

• Press and hold the side button and volume up button at the same time until you see the Power Off slider.
• Slide it to the right.
• Wait for 30 seconds and then turn the device back on by pressing and holding the side button.

To reset your iPhone 14/15/16:

• Open the Settings app.
• Go to General > Transfer or Reset iPhone > Erase All Content and Settings.

• Hit “Continue” and follow the on-screen instructions to confirm.

  

Fix 2: Move Device Closer

If you’re unable to complete data transfer on iPhone 15 and iPhone 16 after trying the first method, there could be a simple solution to the problem, i.e., move device closer to continue.

The transfer process relies on both Bluetooth and WiFi to move your files from one device to another. And as you might know, Bluetooth has a short range. If both devices are apart even by a few feet, this issue might appear. Move the devices closer to continue and see if it works.

Fix 3: Update New iPhone to the Latest iOS Version

If your old iPhone unable to complete data transfer to new iPhone 16 even now, there might be a software bug in iOS. As said earlier, such glitches do appear in new releases and are often fixed with software updates. So, what you need to do is check for new updates, and if there are any available, install them.

To do this, follow the steps.

• Open the Settings app.

• Go to General > Software Update.

  
• Download updates if available.

Note:

Make sure to perform these steps on both of your devices.

Fix 4: Charge iPhones During Data Transfer Process

If new iPhone unable to complete data transfer still, try putting it on the charger. Apple advises keeping your iPhone on the charger while performing tasks like backup, restore, update, and transfer. Doing so makes sure the iPhone has enough juice in the tank to complete the process. So, put both your iPhones on the charger and try again.

Fix 5: Make Sure Both iPhones have Bluetooth Enabled

As said earlier, the transfer process utilizes both Wifi and Bluetooth. And you need to have both of them on to conclude the transfer. So, if your iPhone unable to complete data transfer even now, pull down your Control Center and make sure BT is on. Do it on both of your devices.

Related read: iPhone 16 Stuck on Preparing to Transfer? Quick Fixes!

Part 3: Fix Unable to Complete Data Transfer on All iPhone - Best Tool

If you’ve tried everything above and you still can’t seem to fix the issue, here’s one final trick for you. With Tenorshare iCareFone, you can make data transfer between iPhones easy and seamless. It allows you to iPhone data, including photos, messages, contacts, and more between iPhone/iPad and PC/Mac. it, you can also back up and restore data, manage files all in a user-friendly interface. Whether you're upgrading to a new phone or just need a reliable backup, iCareFone makes the process effortless.

Downloads:

Tenorshare iCareFone - Best iOS Backup Tool and File Manager

rated on Trustpilot >

• Free backup everything you need on iPhone/iPad/iPod
• Transfer music, photos, videos, contacts, SMS without limitation
• Selectively restore files without erasing current data
• 1-Click to transfer photos from iPhone to PC/Mac
• Supports the latest iOS 18 and iPhone 16

How to Complete Data Transfer from Old iPhone to New iPhone 16

• Download and install Tenorshare iCareFone on your computer. Open iCareFone and connect your old iPhone to the PC. Choose “Backup & Restore” from the right menu.

  

  
  

• Then select all the data and click on Backup button.

  

• When the backup is completed, choose “View Backup Data”.

  
• Now disconnect your old iPhone and connect your new iPhone 14/15/16 to the computer. Tick all the data and choose “Restore to Device”.
  

• And boom, all your stuff is now in the new iPhone! As simple as that!

  

Final Words

Many iPhone 14/15/16 buyers are reporting that they’re unable to complete data transfer. If you’re one of those, luckily you now know everything you needed to know to sort out this issue.

Remember, if nothing else works for you, simply use Tenorshare iCareFone — it’s the simplest tool you can use to manually back up all your data from the old iPhone and transfer it to the new iPhone.