iPhone sync hangs at "Preparing to sync".

I have a 13 Pro (iOS 17.2) that I'm trying to sync with a mini M2 (OS 14.2). This was working until the end of Nov. 2023. I have tried rebooting both devices, and deleting all folders in the MobileSync folder. When the Iphone is connected, it will create a backup, then never get past "Preparing To Sync". I have given them an hour to move on to syncing, but have had no success. I am using an Apple cable that is connected directly to both devices, there is no hub involved.

Mac mini, macOS 12.7

Posted on Dec 13, 2023 7:20 PM

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Posted on Dec 17, 2023 8:34 AM

Reporting back, as I updated my Mac today from Ventura 13.6.3 to Sonoma 14.2 - to no avail as iPhone sync with Finder still gets stuck at stage 2 'Preparing to sync'. This is happening with 2 iPhones - me and spouse, iPhone 11 Pro and iPhone 12 Pro both with iOS 17.2.


Tens or hundreds of US$B in spare cash, and yet shifting onto customers the burden of testing the software through so-called 'beta releases', and yet again managing to deploy a botched release that breaks critical functionality.


I found 2 more threads: https://discussions.apple.com/thread/255265364 and https://www.reddit.com/r/ios/comments/16sc6sp/iphone_stuck_on_step_two_preparing_to_sync_phone/


Shutting down my Apple Watch didn't help in any way. Terminating the MDCrashReportTool however did provide a valid work-around. You don't need to fiddle with Terminal or have administrative rights. Just launch Utilities/Activity Monitor, and after your sync operation has gone stuck in stage 2 'Preparing to sync', search for 'crash' in Activity Monitor (see screenshot) then Force-Quit the MDCrashReportTool process (regular Quit won't do) as in Quit an app or process in Activity Monitor on Mac – Apple Support (UK)


iPhone sync was subsequently able to transfer new song tracks to my iPhone, so this looks good so far.


Does this work-around work for you?


32 replies

iPhone sync hangs at "Preparing to sync".

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