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Here in this article we will show you how to sync your iPhone 5 with multiple Mac computers at a time.

There are two parts in this article: Part one will show you how to get the iTunes Library ID from your main Mac computer. Part two will show you how to modify your subordinate Mac computer to use the same iTunes Library ID so that you can sync them. If you're not tired with the troublesome steps, just go ahead to merge iTunes Libraries. If you're a person who doesn't not know so much of computer techniques, I suggest you try iSkysoft iTransfer to copy music from your iTunes library to iPod, iPhone, iPad, then later import these songs to your targeted iTunes Library. The steps are very simple. You can download the trial version to see how it works.

Part 1. How to Get the iTunes Library ID from Mac

Step 1: Click the Finder in the dock to open a new Finder window.

Step 2: In the Go menu, click the Go to Folder... option.

Step 3: Type ~/Music/iTunes in the textfield of Go to the folder, then click the Go button.

You also can export all songs from an iPod playlist to iTunes library in one click. Go to the Music menu, and navigate to the Playlists tab on the right of the main interface. Then control-click any one of the playlists and select the Export to iTunes option to copy iPod playlist to your iTunes library.

Step 4: In the iTunes folder, you will see iTunes Music Library.xml. Double click it to go to TextEdit window.

You also can export all songs from an iPod playlist to iTunes library in one click. Go to the Music menu, and navigate to the Playlists tab on the right of the main interface. Then control-click any one of the playlists and select the Export to iTunes option to copy iPod playlist to your iTunes library.

Step 5: In the part of Library Persistent ID key, type in the value. Make sure not to modify the file before closing. The value should be something like D501EB4887717F8F.

Part 2. How to Modify Your Subordinate Mac Computer

Step 1: Click the Finder in the dock to open a new Finder window.

Step 2: In the Go menu, click the Go to Folder... option.

Step 3: Type ~/Music/iTunes in the textfield of Go to the folder, then click the Go button.

You also can export all songs from an iPod playlist to iTunes library in one click. Go to the Music menu, and navigate to the Playlists tab on the right of the main interface. Then control-click any one of the playlists and select the Export to iTunes option to copy iPod playlist to your iTunes library.

Step 4: In this step, you have to backup iTunes Library and iTunes Music Library.xml. Select these two files, press Command+c then Command+v on the keyboard. You will successfully backup these two files.

Step 5: Open iTunes Music Library.xml by double clicking it.

Step 6: Make note of the existing Library Persistent ID then type the same value we used in part one to the part of Library Persistent ID key. Last, save the file.

Step 7: After that, we have to use HexEdit to open iTunes Library. Click to download HexEdit from here: HexEdit Download

Step 8: After opening iTunes Library with HexEdit, click Find in the Menubar to search the old Library Persistent ID we have replaced in Step 5. Confirm to select Hex option as your search type.

Step 9: After replacing the original Library Persistent ID with the one we used in Part One, save the file.

Step 10: Now you can open iTunes then connect your iPhone 5 with Mac computer to start syncing. On the left hand side, select your iPhone from the devices list. Note that if you select Manually manage music and videos option from the Summary Tab you will neither get prompts to erase your data, nor get the files on your iPhone grayed out.



disqus_fZ6NG8368D
This still works as of February 2014. Thanks! One minor problem, though. Now iTunes on my new comp think it has all of the music, movies, and apps in its library as iTunes on my old comp. Any quick/easy way to get it to recognize only the items which are actually present in its library?
ursgrtzner
If I copy the whole iTunes data of my MacBook Pro (where I do the sync) on a external disk, connect this disk to my MacBook Air and setup this iTunes that it uses the external disk data, would synching now work also on this MBA? Or do I still need to adopt the PersistentID?
Sebas
Works perfectly with this instruccions!!! Snow Leopard 10.6.8 and iTunes 11.1.3 (8) Thanks a lot!!
thebabybean
thanks Jack!!
gazpixs
Thanks Jack, You advice worked perfectly!! I chose what was on my iPhone for any conflicts and that was all I had to do. Cheers Gaz
google-f4624b49c8ae52fae16b211
for Itunes 11 need delete content into iTunes Library.itl, this work
NoName
Works like magic, cheers - suck it @PPLE !
facebook-100001240279132
This process no longer works in iTunes 11.0.1. BUT! if you copy the XML and itl files from the old mac (the one you use to sync the iDevice to) then you paste those files into the folder on the other Mac you're trying to use to sync the iDevice files to and then open iTunes and Voila! NO binary coding or hassle! just tried it and it worked!
Terek
You seem knowledgeable with Macs and iTunes... I, like many others, am not impressed with iTunes 11. Made a post on Apple Community asking how to revert back to 10 after noticing how many users had negative reviews to their iTunes 11 experience. It's not important to me to sync on multiple computers. Just want the ABILITY TO SYNC MY iPhone 5 WITH MY CURRENT ITunes 10 (version 10.3.1) onto my MacBook Pro running OS X (version 10.5.8). My iPhone was just delivered Dec.31,2012 from Telus (a Canadian mobile provider). Will this procedure allow this? Or is there another article I should be following? I also sent this reply to your email. Thanks David, Terek Whistler, BC, Canada
Philip
Thank you for this great article ! I run it perfectly with snow leopard. Now with a lion and mountain system it doesn´t work.I think the method has changed, since the itunes libary folder also has changed…

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