iPhone Displays Unable to Complete Data Transfer? Get Solutions

Sophie Green
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Are you frustrated with your iPhone's unable to complete data transfer smoothly? Whether you're trying to move files between devices or sync your data, encountering obstacles can be exasperating. Understanding the reasons behind these interruptions is the first step toward finding effective solutions. Then we'll delve into common issues that hinder iPhone data transfers, explore efficient transfer tools, provide step-by-step fixes, and address frequently asked questions to ensure a seamless data transfer experience.

fix it when iphone is unable to complete data transfer

Part 1: Reason Why iPhone Is Unable to Complete Data Transfer

Navigating the realm of iPhone data transfer can sometimes feel like traversing a maze with unexpected dead ends. When your iPhone 15/14/13/12 is unable to complete data transfer, understanding why your old iPhone struggles to transfer data to a new iPhone is essential for troubleshooting effectively.

In this section, we'll explore common reasons behind data transfer failures on iPhones, shedding light on potential culprits that could be impeding your seamless data exchange experience.

Insufficient Storage: If the iPhone doesn't have enough available storage space, it won't be able to complete data transfer.

Faulty Cable or Port: Sometimes, the issue lies with the cable or the port you're using for data transfer.

Software Glitches: Occasionally, software glitches or bugs can interfere with data transfer.

Outdated Software: Compatibility issues arise due to outdated software.

Corrupted Files: If the files you're trying to transfer are corrupted, the transfer process may fail.

Network Issues: If you're transferring data over a network connection, such as Wi-Fi or cellular data, network issues could be causing the problem.

Hardware Damage: In rare cases, hardware damage to the iPhone's components could be preventing data transfer.

If none of the above solutions work, consider seeking assistance from an authorized service provider.

See more: Resolve Problem of Data Transfer Directly from iPhone Not Working

Part 2: Use 1-Click Transfer Tool When iPhone Is Unable to Complete Data Transfer

As your iPhone is unable to transfer data to a new iPhone 15 Pro Max/15 Pro/15/14/13, you can bypass the traditional way, and use another effective data transfer tool - Samsung Data Transfer. This is a desktop application to copy data between iOS device in 1 click. It is compatible with most generations of iOS, including iOS 17. With it, you can transfer your contacts, calendars, bookmarks, books, and notes at once to your new iPhone.

Main features of this transfer software:

- Transfer different data from one iPhone to another at once.

- Allow you to select file types before transferring files.

- Support USB transfer, which makes the process smooth.

- The data migration from iPhone to Android and Android to Android is available.

- Support iOS 5.0 or later, and Android 4.0 or higher.

- The transferred data will not cover the existing data on your target device.

Download the data transfer tool.

download windows version of iphone to iphone transferdownload mac version of iphone to iphone transfer

Use this software to transfer data to your new iPhone:

Step 1: After downloading the software, please install it on your computer, and then click the "Mobile Transfer" tab on the interface.

Step 2: Use Apple lightning USB cables to connect your old iPhone and new iPhone to the computer. Then click "Trust" on both iPhones, and ensure your new iPhone is the "Destination" device.

Step 3: Select the data types you want on the interface, and click "Start Copy" to begin the process. Once done, your data will be imported to your new iPhone.

copy data to a new iphone with another transfer tool

Read also: Easily Transfer Ringtones from Android to iPhone

Part 3: Fix iPhone When It Is Unable to Complete Data Transfer

Facing a stubborn iPhone that simply won't play nice when it comes to data transfer? Fear not, for there's various easy troubleshooting techniques at your disposal. From checking battery health to resetting network settings and updating iOS, we'll walk you through a series of step-by-step fixes to address common issues plaguing iPhone data transfers. Get ready to roll up your sleeves and tackle those transfer woes head-on.

3.1 Check the Battery on iPhone

The battery status of your iPhone can significantly impact its ability to complete data transfers smoothly. Thus, please charge both your iPhones fully before transferring data.

Besides, if your battery is damaged so that you cannot charge your iPhone, please take your iPhone to a nearby Apple Store and replace it with a new battery.

check the battery when an iphone is unable to transfer data

3.2 Reset Network

A misconfigured network connection can be a major roadblock when it comes to iPhone data transfers. Here, we'll guide you through the process of resetting network settings on your iPhone, helping you troubleshoot connectivity issues and restore smooth transfer functionality.

  1. Go to Settings on your iPhone, and click "General".
  2. Choose "Transfer or Reset iPhone" > "Reset" > Reset Network Settings"".
  3. Once done, connect your iPhone to a stable network again and start to transfer data.

reset network settings on iphone as it cannot transfer data

3.3 Update iOS

Keeping your iPhone's operating system up-to-date is crucial for maintaining optimal performance and compatibility with transfer protocols. When you find that your iPhone fails to complete the data transfer, please check your iOS and update it to the latest. By the way, if there is no new iOS pushed on your old iPhone, you needn't update the software on the device.

  1. To update iOS, you need to launch the Settings app on your iPhone.
  2. Choose "General" > "Software Update".
  3. If there is a new iOS, please download and install it directly.

update ios when the iphone cannot complete the data transfer

3.4 Restart iPhone

Sometimes, a simple restart can work wonders in resolving software glitches and restoring functionality to your iPhone. If your iPhone 14/13/12 is unable to complete data transfer, you can restart your iPhone and transfer your data again.

  1. For iPhone 15/14/13/12/11/X, please press and hold one volume button and the side button at the same time.
  2. When the power-off slider shows up on the screen, release the buttons, and drag the slider to turn off your iPhone.
  3. After a while, press and hold the side button to turn on your iPhone.

restart iphone if it is unable to finish the data transfer

Learn more: Directly Move Data from Samsung to iPhone 15 [6 Ways]

3.5 Turn On Bluetooth

Bluetooth connectivity plays a vital role in many data transfer scenarios, particularly when wirelessly transferring files between iOS devices. Thus, please enable Bluetooth and Wi-Fi on your iPhone.

  1. Launch iPhone Settings, and find and click "Bluetooth".
  2. Then enable the feature directly.

turn on bluetooth on iphone before transferring data

3.6 Check iPhone Storage

Insufficient storage space can cripple your iPhone's ability to complete data transfers, leading to frustrating errors and interruptions. In this subsection, we'll help you assess your device's storage status and then you can decide if you need to free up space.

  1. Navigate to iPhone Settings, and tap "General".
  2. Find and click "iPhone Storage" to check the internal storage space of your iPhone.

check iphone storage when the device is unable to transfer data to a new iphone

3.7 Uninstall Useless Apps

Unused or redundant apps lurking on your iPhone could be consuming valuable resources and impeding data transfer performance. If the storage memory on your iPhone is almost exhausted, please uninstall those apps that you use seldom.

remove useless apps from iphone

3.8 Use iTunes

Apple's venerable media player and device management software, iTunes, remains a powerful tool for managing data on your iPhone. With it, you can back up your iPhone data and restore the backup to your new iPhone.

  1. Run iTunes on your computer, and connect your old iPhone to the PC.
  2. Click the iPhone icon and choose "Summary".
  3. Check "This computer" and tap "Back Up Now". Once done, remove the iPhone.
  4. Establish the connection between your new iPHone and the computer.
  5. Go to "Summary" and click "Restore Backup".

transfer data with itunes when iphone cannot transfer data directly

3.9 Reset iPhone

When all else fails, a factory reset may be the last resort to address persistent data transfer issues on your iPhone. Please back up your data first because it will remove all your data.

  1. Open Settings on your iOS device, and click "General" > "Transfer or Reset iPhone".
  2. Tap "Erase All Content and Settings", and enter your passcode for confirmation.
  3. Click "Continue" to start the resetting process.

erase all content and settings on your iphone if the data transfer is failed

3.10 Check USB Cable and Port

If the USB cable you use or the USB port of your iPhone is damaged, you are unable to complete data transfer on your iPhone. In this case, please use another suitable Apple data cable to test. If it still doesn't work, you may need to replace the charging port for your iPhone. There are many DIY videos of iPhone charging port replacement, but for safety, you'd better go to an offline Apple Store.

check iphone charging port if it cannot complete data transfer

Further reading: If your photos cannot be transferred to your new iPhone, What can you do? Follow this guide to fix it immediately.

Part 4: FAQs of iPhone Data Transfer

Q1: What steps should I take if my transfer stops midway?

If your transfer stops midway, you can use the fixes mentioned above to solve the issue first. Then restart the data transfer between your iPhones.

Q2: What measures can I take to prevent data corruption during transfer?

To prevent data corruption during transfer, consider implementing the following measures:

  • Use reliable transfer methods, such as using Samsung Data Transfer.
  • Check for errors and ensure the data not already corrupted.
  • Avoid interruptions, ensuring that the transfer process is not interrupted by power outages, network failures, or other disruptions.
  • Use stable network connections or physical connections (e.g., USB cables) to minimize the risk of data corruption due to transmission errors.
  • Monitor the transfer, keeping an eye on the transfer process and being alert to any signs of errors or corruption, and taking action promptly if necessary.

Q3: Is there a maximum file size or transfer limit I need to be aware of?

The maximum file size or transfer limit can vary depending on the specific transfer method, software, and devices involved. If you use the transfer software in Part 2, it can transfer files without file quantity or size restrictions.


With these troubleshooting steps and expert tips at your disposal, you're now equipped to overcome any challenges hindering your iPhone's data transfer capabilities. Whether it's leveraging the efficient transfer tool - Samsung Data Transfer, implementing quick fixes, or understanding the intricacies of iOS data management, you have the knowledge to navigate through any data transfer hurdles. Say goodbye to interrupted transfers on your iPhone.

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Sophie Green Chief Editor

Sophie Green, Chief Editor of Samsung-messages-backup website, has been focusing on the realm of Android Recovery, Android Transfer (Backup), Android Device Tips, Phone Clean, and Phone Transfer technologies. Recognized contributions on leading platforms attest to her esteemed expertise and reliability.