Cómo Sincronizar Tu iPhone Con Multiples Computadoras

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Posted October 27, 2008 at 8:48pm by iClarified

Estas son instrucciones para sincronizar tu iPhone con dos o mas computadoras a la vez.

Para hacer un poco más claro este proceso, el tutorial está dividido en dos partes. La primera te enseñará cómo obtener la ID de la Biblioteca iTunes de tu computadora principal. La segunda parte modificará tu computadora secundaria para usar la misma ID de Biblioteca iTunes, con esto permitir la sincronización con ambas.

Para tu comodidad, las instrucciones de la parte Uno y Dos contemplarán casos de Windows y Mac.

PARTE UNO (MAC)
Si tu computadora principal es una Mac, inicia aquí...

Paso Uno
Abre una nueva ventana de Finder con un click en el ícono de Finder ubicado en el dock.

Cómo Sincronizar Tu iPhone Con Multiples Computadoras

Paso Dos
Selecciona Ir a la carpeta... en el menú Ir.

Paso Tres
Escribe ~/Music/iTunes en el campo de texto, luego da click en el botón Ir.

Paso Cuatro
Doble click en el archivo nombrado iTunes Music Library.xml para abrirlo en TextEdit.

Paso Cinco
Anota el valor de la ID Persistente de tu Biblioteca (Library Persistent ID key). Procura no modificar el archivo antes de cerrarlo. Debe verse algo como D501EB4887717F8F.

PARTE UNO (WINDOWS):
Si tu computadora principal es una Windows PC, inicia aquí...

Paso Uno
Presiona el botón de inicio Windows, situado en la parte inferior izquierda de la pantalla y selecciona Music del menu.

Paso Dos
Doble click en la carpeta iTunes.

Paso Tres
Doble click en el archivo llamado iTunes Music Library.xml para abrirlo en el Bloc de Notas (Notepad)

Paso Cuatro
Anota el valor de la ID Persistente de tu Biblioteca (Library Persistent ID key). Procura no modificar el archivo antes de cerrarlo. Debe verse algo como D501EB4887717F8F.

--------------------------------

PARTE DOS (MAC):
Si tu computadora secundaria es una Mac, continúa aquí...

Paso Uno
Abre una nueva ventana de Finder con un click en el ícono de Finder ubicado en el dock.

Step Two
Selecciona Ir a la carpeta... en el menú Ir.

Step Three
Escribe ~/Music/iTunes en el campo de texto y luego dale click al botón Ir.

Paso Cuatro
Primero creamos un respaldo de nuestra iTunes Music Library.xml y la iTunes Library. Selecciona ambos archivos y presiona Command+C y luego Command+V en tu teclado. Esto hará una copia de respaldo de los archivos.

Paso Cinco
Doble click para abrir iTunes Music Library.xml.

Paso Seis
Anota la actual ID de tu Biblioteca (Library Persistent ID) y luego cambia la Library Persistent ID por la que ya tenías anotada de la computadora principal. Guarda el archivo.

Paso Siete
Ahora necesitamos abrir la iTunes Library usando un HexEditor. Podemos bajar HexEdit de aquí

Paso Siete
Una vez que has abierto la iTunes Library usa HexEdit para buscar la vieja Library Persistent ID que reemplazamos en el Paso Cinco. Hazlo dando click en Find en la barra de Menú. Asegúrate que seleccionas Hex como tu modo de búsqueda.

Paso Ocho
Una vez hallado, reemplaza la antigua Library Persistent ID con la que copiamos en el Paso Uno y guarda el archivo.

Paso Nueve
Ahora puedes abrir iTunes y conectar tu iPhone a la nueva computadora para sincronizar. Selecciona tu iPhone de los dispositivos a la izquierda. Nota que si seleccionamos ahora Manejar manualmente música y videos de la pestaña de Sumario no te saldrá la advertencia de que estás a punto de borrar tus datos, ni se borrarán los archivos en ti iPhone.

PARTE DOS (WINDOWS):
Si tu computadora secundaria es una Windows PC continúa aquí....

Paso Uno
Presiona el botón de Windows (Inicio) en la esquina inferior izquierda de tu pantalla. Selecciona Music del menú.

Paso Dos
Doble click en la carpeta iTunes.

Paso Tres
Primero crearemos un respaldo de iTunes Music Library.xml y de iTunes Library.itl. Selecciona ambos archivos y presiona Control+c y luego Control+v en tu teclado. Esto hace una copia de respaldo de los archivos.

Paso Cuatror
Doble click para abrir iTunes Music Library.xml.

Paso Cinco
Anota la actual Library Persistent ID y luego cámbiala a la que copiamos en la Parte Uno. Guarda el archivo.

Paso Seis
Ahora necesitamos abrir iTunes Library.itl usando un HexEditor. Puedes descargar HexEdit de aquí

Paso Siete
Paso Siete
Una vez que has abierto la iTunes Library usa HexEdit para buscar la vieja Library Persistent ID que reemplazamos en el Paso Cinco. Hazlo dando click en Find en la barra de Menú. Asegúrate que seleccionas Hex como tu modo de búsqueda.

Paso Ocho
Una vez hallado, reemplaza la antigua Library Persistent ID con la que copiamos en el Paso Uno y guarda el archivo.

GRACIAS***: Este tutorial está basado en el descubrimiento de Andrew Grant. Él merece el crédito por este trabajo. Puedes checar su blog y lo que escribe al respecto aquí

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JerryLwin - November 3, 2015 at 4:50am

All the parts are okay until i tried to find the older ID with hexedit and it stated the string is not found and I was stuck in a dead end. Any solutions?

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CanadianOwl - February 8, 2014 at 7:50pm

The problem with MultiTunes is that it doesn't work with iTunes 11 according to their own website. Thanks to Lauren. Her suggestions worked.

Floke - January 8, 2014 at 1:17pm

1. Close everything; 2. Jailbreak your iDevice; 3. Install MultiTunes. Cya!

Owen - December 9, 2013 at 1:57am

If you follow this tutorial could you sync your iphone with any computer that has itunes without having to delete your library?.

Lauren - June 15, 2013 at 12:10am

I tried this and it worked for my iPod, but not my iPhone and they were from the same library and had the same Library Persistent ID. Any idea why this might've happened?

Damian - June 6, 2013 at 11:13pm

1) Close iTunes 2) Update the .xml file with the persistent ID 3) delete sentinel file 4) Delete .itl file and recreate a text-file with the same name.

The Helped - August 23, 2015 at 9:26am

THANKKKSSSS TOO YOOUUU!!!!!!!!!! EVERYONE, THIS GUY HAS THE KEY!!! Its 3:18 in the morning, and i have finally concluded my search for this single elusive answer!! KUDOS!! The trick wasn't working for my iphone until I did THIS!! Thank you! Quote of Damian: 1) Close iTunes 2) Update the .xml file with the persistent ID 3) delete sentinel file 4) Delete .itl file and recreate a text-file with the same name. THANKS DAMIAN!!!

lucky005 - May 17, 2013 at 2:18am

this option is not working for me it resets to the original value what should be done please tell

Chris - April 21, 2013 at 2:42pm

I have tried this several times, but the ID keeps getting reset within the "iTunes Library.itl" file which then updates the .xml file. I have even tried setting the .itl file to read only but then Itunes won't open complaining that the file is locked. Wow. I never had an issue copying music from anywhere with my droid.

yo - April 20, 2013 at 11:07pm

easy uh?

Sam - January 29, 2013 at 11:35am

I'm pretty sure this no longer works on iTunes 11

Syltrem - January 9, 2013 at 11:43pm

My iTunes Library.itl file contains all NULLs (00 00 00...) Is this normal ? Possibly because I don't sync music automatically, but manually ?

Sam - January 29, 2013 at 11:43am

That's probably because your iTunes is open, but (refer to what I said above, I think they patched it in iTunes 11.) Everything seems to revert to the old Persistent ID. I also noticed that there is a file named "Sentinel" (If you show hidden folders.) Using HexEdit, you'll see that it also has the ID in it. I changed all 3 ID's (iTunes library.itl, iTunes Music Library.xml and the Sentinel's file ID) with iTunes 11 reverting it straight back to the original IDs.. Pretty sure I've done everything correctly, iTunes was also closed for the duration.

Syltrem - January 29, 2013 at 12:53pm

I couldn't get it to work with iTunes 11 so I decided to use gSyncit and open a Google mail account for contacts/calendars. I was already syncing Tasks/Notes with Toodledo using gSyncit so that wasn't a big deal at this point. I just find Apple is not making my life any easier despite what they say. The Palm TX was so much simpler - all apps were syncing automagically to Palm Desktop on multiple computers. Each 3rd party app was installing a conduit where needed (time sheet, encrypted notes...), and you only had 1 button to press to sync everything. And your data was local on your own machines. With Apple you have to install other pieces of software on top of iTunes/Outlook, open up accounts on different Web services, and your data is dispersed overs a few Internet servers (cloud) over which you have absolutely no control. There are advantages to that too, mind you, but only if I happen to have my iPhone stolen while away at the end of the world (not often...) Bad Apple, instead of improving they make things ever so complicated.

Sharmistha - September 2, 2012 at 3:24pm

hi...while saving itunes music library.xml in apple editor after changing the persistent key, it shows following syntax error- A < cant go here. plsss tell a way out....

keny - November 19, 2012 at 9:32pm

are u sure u did not tamper with anything else in there?.... btw it seems to b a 2 month old query...did u happen to fix it by now?

Filo - August 23, 2012 at 7:56am

In stage 8 of the instructions, you say that we have to replace the OLD LIBRARY PERSISTENT ID with the no. obtained from stage 1 - but this is the SAME number surely? Please clarify. Thanks.

ken - August 19, 2012 at 9:49pm

Any way to do this for a new mac which has mountain lion? Mountain lion is not allowing itunes 10 to be downgraded to itunes9 by uninstalling and the technic specified in this post does not work because itunes reverts the ID back to what it was. Any more options?

Rick - November 19, 2012 at 8:27pm

did you ever get it working in iTunes 10 on mountain lion? I've used several different text editors and check the string in both lib files and it keeps reverting back to the old persistent id.

ken - November 19, 2012 at 9:28pm

yes it worked after some of these steps - first go to the applications folder and go to "show info" for itunes app [select itunes and hit command+i] > here change the permissions to "read & write" for everything > now trash itunes and it should go off > now download an older version of itunes and install it [something lower than 10]... after this try the entire process and it should retain the persistant ID this time..... theres something with itunes 10 which reverts it to the previous default id... try this and see.

rick - November 19, 2012 at 10:06pm

thanks will try and repost

rick - November 19, 2012 at 11:34pm

so, had to downgrade, change user permissions on mountain lion to delete iTunes, then deleted iTunes folder, installed previous version of iTunes, changed the xml, then the hex edit (super easy btw), downloaded newest iTunes, works, done. thank you.

JK - April 24, 2013 at 3:28pm

Im trying to still figure out how the hex edit works. I copied old itl file, pasted it in hex editor and clicked search but i get nothing. And once you do find it, how do you replace it? this is the only step im confused about. Thanks

bedroom wallpaper - May 9, 2012 at 7:38am

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Oscar Romero - May 25, 2011 at 9:47am

Hi, I dont need to sync my iPhone with multiple computers, but I have a new laptop (PC) nad all I want is to be able to Sync my iPhone 4 and iPod Touch with my new laptop and stop syncing with the old one. Is this possible?

Dave - November 1, 2011 at 10:28pm

Same as me, I tried this - without success... has it been disabled in iTunes 10?

wilson - December 29, 2010 at 3:02pm

i dont think this works for itunes 10 . . . cause it still prompts me to erase & sync , & when i check back into the files, the old code reappears. i have done this successfully on other computers, i dont know whats causing this problem now, especially since none of the files are read only.

thewolfe - December 14, 2010 at 3:45pm

I've installed iTunes on my new computer and then copied the iTunes folder from my old computer and replaced that folder on my new computer and it has worked two different times.

Jeannie - January 24, 2012 at 5:49am

I discovered numerous fascinating stuff in your blog particularly the on going conversation. From the tons of comments on your articles.Great work.Keep it up.

John Yoder - November 10, 2010 at 12:30pm

This does not work in iTunes 10. HOWEVER, if you roll back to 9.2.1, it DOES work, then you can upgrade back to 10.

honey glazed - February 1, 2011 at 12:17pm

Nice one John Yoder -- if you roll back to 9.2.1, follow tutorial, then update to current iTunes, it works like a dream. Much thanks.

Amanda - May 22, 2012 at 8:53pm

Yes! Uninstalled iTunes 10, installed 9.2.1, edited the files and then upgraded. Works fine!

TorontoBoy - November 1, 2010 at 9:32pm

Yes, sadly this no longer works in iTunes 10. On the "secondary" computer, i.e. the one where we change the ID manually, the ID gets reset to its original value by iTunes once any action (e.g. playing a song or, more importantly, plugging in a device) is performed. Interestingly if you just load iTunes and quit, the ID change does stick. So it seems iTunes is reading the ID from somewhere else. Perhaps from another settings/preference file? (Hopefully) Worst case is that this is now a hard-coded check and the ID is based on something we can't easily change (e.g. hardware ID/CPU serial number/MAC/etc or derivation from one of those). I'll keep checking back to see if someone's come up with a workaround! I'll keep playing with it too... It's really too bad since the new sync provided by Apple is only for purchases from their store, not any other files (which could be perfectly legal as well, such as CD imported MP3s).

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