How to Solve that iPhone Connecting and Disconnecting from Mac Rapidly

Solution 1: Basic Check to Fix iPhone Connects and Disconnects from Mac

Many people don't know this, but if you go into iTunes Preferences -> Devices, then check "Prevent iPods, iPhones & iPads from syncing automatically," it will keep your iPhone from connecting and disconnecting. This is especially handy if you're using an older version of iOS.

If Wi-Fi sync isn't solving the problem for you, try turning off Bluetooth. Go into Settings -> General -> Bluetooth, then turn off Bluetooth and reboot both devices. Your iPhone should now be able to sync without connecting and disconnecting repeatedly.

Before doing anything else, check that the cable you're using is suitable! If the cable is damaged or even slightly bent, this can cause problems with connecting to other devices. Try another cable if possible, or an Apple-certified cable if not.

If you're using USB ports on an external monitor or another USB hub, try plugging your device directly into one of the ports on your Mac itself. Some hubs aren't powerful enough to charge an iPhone while it's also connected to a computer, so they might drop out when transferring data.

Solution 2: Stop the Process Using Activity Monitor

When iPhone keeps connecting and disconnecting from Mac continues, the Activity Monitor comes in handy. Similar to how we forcibly close apps on the iPhone, Mac offers Activity Monitor, forcing close apps and processes. With this method, one of the people with the identical iPhone that keeps connecting and disconnecting was able to solve the problem. To fix this, follow these simple steps.

1. Go to System Preferences by clicking the Apple logo on the upper left corner of your screen. Then select Users & Groups.

2. Unlock your settings by tapping the Lock at the bottom left corner of the window. You’ll need to enter your Mac password to authorize this.

3. Click the (+) icon to add a new user, then select Administrator as the account type. Enter a username and password for your new admin account, then you’re all set!

Solution 1: Use UltFone iOS System Repair to Fix iPhone Connecting and Disconnecting from Mac

UltFone iOS System Repair is a powerful tool that can fix iOS issues. It can fix iPhones stuck in recovery mode, USB devices not recognized, iTunes errors (1, 2, 3, 9, 11, and others), etc. Ultfone iOS System Repair also provides an easy and quick way for you to enter or exit Recovery Mode. The best thing about this tool is that it does not erase any data on your device during the fixing process. Below are some key features of this tool.

The key features of the Ultfone iOS System Repair include:

• All iOS device issues can be fixed with one click, including iPhone stuck on the Apple logo, recovery mode, white screen, etc.
• Fix a disabled iPhone/iPad without data loss.
• Enter or exit recovery mode safely.
• Downgrade iOS without iTunes or jailbreak.
• Remove the lock screen when you forget the password.

• Step 1Please start UltFone iOS System Repair after downloading and installing it on your Mac. Then Launch the program and connect your Device with the system via a cable. Click "Start" to enter the iOS system repair module. On the apearing page, click "Standard Repair" to proceed.

  

• Step 2Click the "Download" button to download the automatically matched firmware package for your device followed by performing the system repair. Clicking "Browse" to select another location to store firmware package.

  

• Step 3After the firmware package is downloaded successfully, please click "Start Standard Repair" to fix the iOS issues on your device. Once the iOS system recovery is done, your iOS device will automatically reboot and everything will back to normal.

  

Solution 2: Stop the usbd Process to Troubleshoot the iPhone-Mac Connection Issue

The usbd process is a background process that runs when your device connects to another computer. It "tells" your computer which protocols to use when connecting. If you're having trouble syncing your iPhone and Mac, you may need to stop the usbd process. The usbd process is a utility that the macOS uses to communicate with devices like your iPhone. You can stop the usbd process by following these steps:

1. Connect your iOS device to your MacBook.

2. Open the Applications and click on utilities.

3. Now, open the Activity Monitor.

4. In the search box, type usbd and click the (X) symbol to force close all processes.

You can also do it with the help of a terminal.Open the terminal on your MacBook.Type this command, “sudo killall -Stop -c usbd”. After typing this, press the enter button.

Solution 3: Reset Location and Privacy Settings in iOS

If you haven't linked your iPhone to your Mac in a long time, the system may have difficulty trusting it. Several people said that changing the location and privacy settings in iOS fixed the "iPhone rapidly connecting and disconnecting from Mac" issue. To solve this problem, follow these steps.

1. Unlock your iPhone and go straight to the settings and click on general settings. After entering general settings, scroll down and select the Reset option. After entering in Reset option, click on reset Location and Privacy.

2. To complete the reset function, you must authenticate with your pin/passcode on the following page. You may now reset the Location and Privacy settings by entering your passcode (or any other authentication method you've chosen). To finish the action, click Reset.

Now reconnect the iPhone to Mac, iTunes should urge you to "Trust" the phone. Accept all of the instructions, and the connectivity problems should be resolved.

Solution 4: Reset SMC and/or NVRAM to Fix iPhone-Mac Connection Issue

If the connection between your iPhone and Mac is not working right, there are two things that you can try that may fix the problem: resetting the SMC (System Management Controller) and/or NVRAM. SMC reset stands for System Management Controller reset. It's a Mac feature that resets your Mac's power-related settings to their factory defaults. SMC resets are sometimes used as a software troubleshooting option to fix issues including slow performance and overheating.