By Michael | Last Updated
Having a brand new iPhone 15 or 14 is undoubtedly exciting. However, some users have reported that they are unable to transfer their cell phone numbers to the new iPhone 15/14. Could this be a technical glitch with the newer line of iPhone devices? This article explores the possible causes of this problem and offers a series of clever solutions.
The issue of being unable to transfer phone numbers on iPhone 15 has caused headaches for many users, and I understand your desire to get this issue resolved as soon as possible. But before trying a solution, learning why the iPhone 15 is having this problem may make the fixing process easier.
1. Network connectivity issues. Unstable internet connection can directly cause the data transfer process between two iPhones to be interrupted.
2. Apple ID error. A mismatch between two Apple IDs may prevent iCloud synchronization.
3. iCloud contacts sync not enabled. If contact sync is disabled in iCloud, phone numbers on iPhone may not be transferred.
4. iCloud storage is low. If iCloud storage is full, new contacts cannot be synchronized.
5. Software compatibility conflict. The software version on your old iPhone may not be compatible with your new iPhone, causing data transfer to fail.
6. Outdated iOS. An outdated system version on your device is one of the possible factors affecting the failure of phone number transfer between iPhones.
Depending on the different reasons why the phone number cannot be transferred on iPhone 15 (Pro/Pro Max), here are some corresponding solutions. If transfer directly from iphone not working, you can also choose to use professional Apple data management tools to transfer, backup or synchronize data and various types of files on your iPhone device with one click, which will be introduced in the third part of this article.
If your device is not connected to a stable Wi-Fi or cellular network, the data transfer process between iPhones may be interrupted. Therefore you need to check the network on your iPhone to make sure the connection is stable and reliable.
Some users reported that restoring network settings effectively fixed the issue of their iPhone 15 not being able to transfer phone numbers. You can reset your network settings by going to "Settings" > "General" > "Transfer or Reset iPhone".
Data between different Apple IDs usually cannot be synchronized directly. If the device receiving the data is not logged in with the same Apple ID as the iPhone transferring the data, contact phone numbers, photos, memos, etc. will not be transferred. Therefore you should double check whether the Apple ID on the device is the same.
Sometimes logging back into your Apple ID can refresh your settings and resolve sync issues. Go to "Settings" > "Your Name", then sign out and back in.
Tip: If your iPhone shows the message "Sign Out is not Available due to Restrictions" for Apple ID, you need to turn off the "Screen Time" feature first.
If you disable the Contacts option on iCloud, the contact phone numbers on the original device will be blocked from being transferred to the new iPhone 15, so you need to make sure that next to the "Contacts" option in iCloud on both devices The switch button is green.
The synchronization feature of iCloud is affected by storage space. If your iCloud storage space is full, it is time to clean up or upgrade. You can enter iCloud in the function list of Apple ID to manage its account storage.
Apple has pushed the iOS 18 update on September 16, 2024 to users. At present, we do not have enough evidence to determine whether the error that users are unable to transfer phone numbers on iPhone 15 is related to bugs in the old iOS system. But in any case, running the latest version of the iOS system can ensure that your device has the latest features and fixes, so you can try to update the iPhone's system to fix the problem of the device failing to transfer contatcts.
Step 1: Open the "Settings" app on your iPhone and tap "General" to go to the "Software Update" option.
Step 2: If a message that an update is available appears, click the "Update Now" button.
Step 3: Wait for the update to complete and follow the on-screen instructions.
If you have tried the above methods but still are unable to transfer your phone number from your old iPhone to iPhone 15, or you want to solve this problem more efficiently, then you can choose to use iSunshare iSyncGenius to complete the data transfer between iPhones. This program is a third-party Apple data management tool dedicated to back up, transfer, and restore data on iOS devices. It has the following advantages.
1. Easily back up data on iPhone to Windows, external hard drive or another iPhone.
2. Support users to selectively back up and restore specific iPhone data.
3. Support users to quickly transfer data to new iPhone after setting up.
4. Simple and easy-to-use operation interface.
Step 1: Download and install iSunshare iSyncGenius on your Windows computer. Next, connect your old iPhone and new iPhone to the computer via USB cables.
Step 2: Launch the software. Click the "Transfer" option, select the files you want to transfer and tap the "Transfer Now" button.
Step 3: The data you selected will be migrated to the new iPhone 15 immediately. Wait patiently for the process to be completed.
Step 4: When the transfer is completed, you will see the prompt message "Data Migration is Successful".
The inability to transfer phone numbers to iPhone 15 means that the new device cannot perfectly take over the role of the old device. This article summarizes the possible causes and solutions of this issue, and gives another tip for transferring data to the new iPhone after setting it up. I hope iSunshare iSyncGenius can help you.
