How to Fix the iMessage Not Syncing Between iDevices Issue

If you own multiple iOS devices, say, an iPhone as well as an iPad, you will want to sync iMessage threads across them. However, some iOS users have reported that iMessage does not sync correctly between iOS devices automatically, especially between iPhone (iPhone 15) and iPad, after updating their devices to the latest iOS 17.

Every iOS update always brings a lot of new features, simultaneously, also accompanied by lots of annoying problems such as iMessage not saying delivered. And iOS 17 is no exception. After the new iOS upgrade, if your iMessage is not syncing either, try these quick fixes in this guide to solve the issue.

How to Fix iMessage Not Syncing Between iDevices

If the iMessage syncing problem between your iOS devices is not a hardware deficiency, here are some quick tips to fix problem:

• Make sure iMessage is enabled on both iOS Devices. You could check on your device in Settings > Messages > iMessage.
• Sometimes you just need to reactivate the iMessage function. Try turning off iMessage and turn it on again.
• If iMessage is on, Tap on “Send & Receive” > Select the phone number and email address that you want to sync to that device.
• Check your network settings and Wi-Fi Proxies to make sure your iDevices are connected to the network correctly and steadily.
• Delete previous iMessage conversations: It has been reported that deleting iMessage threads may fix this problem.
• You should know that only new iMessages will sync, the old chats will not.

A Better Way to Sync iMessage/Messages Between iDevices

If your iMessage is still not syncing between devices after performing the above steps, we also offer you an alternative solution to solve the problem with AnyTrans. It is an iOS file transfer tool that can help you sync messages and iMessage from Mac to iOS device or between any two iDevices (iPhone/iPad/iPod touch) easily.

Step 1. Download AnyTrans on your computer and launch it > Connect your two iDevices to the computer via USB cables > Choose “Phone Switcher” > Click on the “Phone to iPhone” mode.

Step 2. Confirm the source device and target iDevice > Click the “Next” button to continue.

Step 3. Then all file categories will be listed here, scroll down to find Messages > Check it and click the “Next” button to start transferring.

Once the merging process is finished, you will find that your messages are now on both of your two devices. Besides iMessages, it also copies contacts, music, photos, videos, etc. between two iOS Devices, between iDevice and Mac/PC. It can help you always put your important data in the right place.

Bonus: You may also want to know how to transfer text messages between iPhones.

The Bottom Line

As you can see, AnyTrans is a tool that can help you better manage your iOS devices, and it is very easy to operate. If you have any good suggestions to fix the iMessage syncing issue, don’t forget to share them with us in the comment section. Meanwhile, you can download AnyTrans to try it for free.