I need to synch mt iphone to a new computer

how do i un-synch my iphone from one computer and re-synch it? please!! lol

Install the latest iTunes program version on the intended new computer.
In iTunes you can go into the 'Store' tab in the top menu bar (Mac OS X) and choose 'Authorize This Computer' for the new computer and likewise 'Deauthorize This Computer' for the old computer. However unless I'm mistaken, you can authorize up to 5 computers with one iTunes account therefore more than one is allowed.
Important:
I would do a final iPhone Backup & Sync first. Then disconnect iPhone
Then wherever the iTunes Media folder is kept (which for Mac is the folder called iTunes within the Home User folder>Music folder> 'iTunes', copy this same folder to the new computer within the same location (if Mac), replacing any standard iTunes media folder which is created for first time use. By doing this you will be keeping all your iTunes media, songs, Apps, etc.
Run iTunes on the new computer and Authorize (as mentioned above from the Store menu tab) with your account details. Exit iTunes.
Now, not a lot of people would mention this, go into the following folder on the old computer:
Home User folder>Library>Application Support>MobileSync and then copy the folder named 'Backup' within to the exact same location on the new computer (for Mac computers). By doing this you are copying your iPhone's own backup data over to the new computer. The iPhone's backup data contains all data on your iPhone including things like all your Text message, App's user data i.e. App game saves and progression, etc.
Now run iTunes on the new computer and check to see all of your Music, Apps, etc. are all present and ok.
Connect your iPhone and try syncing but don't backup iPhone just yet and uncheck to stop iPhone automatically backing-up. You don't want to overwrite the iPhone backup that you've copied over from the old computer which is now sitting in the appropriate folder in the new computer, just in case there's problems and you need it clean. If your sync worked fine just like on the old computer with all the current info intact on the iPhone and in iTunes, then your all good to go. If the data on the iphone has changed, i.e. it has sync'd the music, apps, etc. but have lots App data and text messages and other settings; then perform an iPhone restore when connecting to iTunes and use the last backup (date and time) that you made from the old computer.
If there are problems then you still have iTunes and it's Media files kept for now on the old computer to resort to, until you succeed.
If all above went well, then you can Deauthorize iTunes on the old computer and your good to go. Try and keep separate backups of your iTunes media folder & iPhone Backup folder.
Hope that helps, but please do get a second opinion in case I have got anything wrong and/or at least keep backups of those folders I mentioned.
D

Similar Messages

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    cgwalsh wrote:
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    See these 2 Links...
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    Syncing to a New Computer...
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    Restoring: http://support.apple.com/kb/HT1414
    Apps can be downloaded again for free, in case you missed some: http://support.apple.com/kb/HT2519

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  • I bought a new computer, and iTunes doesn't have my music or anything on there. I want to get everything on my iPhone to my new computer/itunes. But no matter what i do, it won't let me. My desktop has everything, and I want all that on my laptop..

    I bought a new computer, and downloaded  iTunes, therefore  the new itunes doesn't have my music or anything on there. I want to get everything on my iPhone to my new computer/itunes. But no matter what I do, it won't let me. My desktop has everything that my phone has on it, I just want it all moved to my laptop. Does that make sense? I could really use some help. I don't live with this desktop anymore so I need to be able to use my laptops itunes. Please help me. Thanks in advance!

    These are two possible approaches that will normally work to move an existing library to a new computer.
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    Keep your backup up-to-date in future.
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  • My laptop was stolen. How do I sync my old iphone to a new computer without losing my purchases (music & apps)?

    My laptop was stolen. How do I sync my old iphone to a new computer without losing my purchases (music & apps)?

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    Here is a great program I used to use called TouchCopy,
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