After iOS8 update, iPhone 5s will not sync with my computer backup. Get an "unknown error" message.

iOS update seemed to crash or hang-up and phone was unresponsive. had to restore. still won't sync with the back-up on my computer. Help!!

Hello jonsax
For issues with restoring from a back up with iTunes, check out the article below to walk you through multiple options to get it sorted out.
iOS: If you can't back up or restore from a backup in iTunes
http://support.apple.com/kb/TS2529
Regards,
-Norm G.

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HT3593 I have a OS X 10.4.11 and my new iphone 4 will not sync with it. I get a message that says i need a 10.5 or higher. what can I do?

I have a OS X 10.4.11 and my new iphone 4 will not sync with it. I get a message that says i need a 10.5 or higher. what can I do?

Hi
I have exactly the same problem.
My computer seems to match the Leopard 10.5 system requirements as follows:
Hardware Overview:
Machine Name:        iMac G5
Machine Model:        PowerMac8,2
CPU Type:                  PowerPC G5 (3.0)
Number Of CPUs:        1
CPU Speed:                  1.8 GHz
L2 Cache (per CPU):    512 KB
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I am using USB cable to sync.
I had to format my computer because of a virus and now it will not sync.
Keeps saying applying changes step 3 of 3, then I am able to click sync again
I think the problem is the names of my computer are different now.
Anyone help me???

Hi, I have the same situation and failed to sync for the tenth time. Very frustrated, then by luck I tried to Authorize my phone inside Itune under "Store" Pull down menu and click "Authorize This Computer". You have to enter your Apple ID and password. I have tried couple of clicks then it work... Now I'm smiling chilling out with my music.... heweeee. Hope that will help....

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whirlygirlmusic wrote:
I have tried to sync my new phone with my computer
Make sure you have the Latest Version of iTunes Installed on your computer ( v 11.1)
iTunes free download from www.itunes.com/download

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Close iTunes. On your phone, double tap the Home button to bring up the multi-tasking bar, tap & hold any app until they all start to wiggle & a red minus sign appears. Tap the red minus sign to remove every app shown. Tap Home button when finished. Re-start your Mac, launch iTunes, connect your phone. See if things work now.

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My i touch will not synci with my computer, keep getting erro message can you help?

Restore. Everything except the password will be restored. Connect via cable to the computer that you use for sync. Be forewarned that it takes a long time. From iTunes, select the iPad/iPod and then select the Summary tab. Follow directions for Restore and be sure to say "yes" to the backup. You will be warned that all data (apps, music, movies, etc.) will be erased but, as the Restore finishes, you will be asked if you wish the contents of the backup to be copied to the iPad/iPod. Again, say "yes."
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Is your iPhone connected to your computer using the lightning cable or are you doing WiFi sync?
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Iphone 5 will not sync with itunes. Get error message must update itunes to 10.7 but itunes state it is up to date with 10.6.

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You need to install Mac OS X 10.6, which requires an Intel Mac and at least 1GB RAM.
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I’ve spent months trying to fix this miserable problem with getting my iPhone 3gs to sync with my new Gateway NV79. Gateway will not help. Their technical support is genuinely worthless. Microsoft blames Apple and Apple blames Gateway.
My old iPod Nano syncs to my Gateway NV79 without a problem. I’ve tried all of the proposed fixes but other posters with no success.
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The USB ports needs tweaking to get the iPhone 3gs to sync to the Gateway NV79. Follow these steps without your iPhone 3gs connected to the Gateway NV79:
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If you cannot update your computer, you will not be able to sync your phone. The requirements are:
Mac system requirements
Mac computer with USB 2.0 port
Mac OS X v10.5.8 or later
iTunes 10.1 or later (free download from www.itunes.com/download)
iTunes Store account
Internet access

Why won't my iphone 3gs will not sync with itunes???

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try this article
iOS: Device not recognized in iTunes for Mac OS X
Products Affected
iPad, iPhone, iPod touch, iTunes 10 for Mac, iTunes 8 for Mac, iTunes 9 for Mac
Symptoms
If your iPhone, iPad, or iPod touch does not appear under Devices in iTunes after you connect it to your Mac, refer to the troubleshooting suggestions below.
Resolution
Note: This article is for Mac OS X users. If you are using a Windows PC, please refer to iOS: Device not recognized in iTunes for Windows.
To begin troubleshooting this issue on your iOS device, first follow the steps in the appropriate troubleshooting assistant below:
iPhone Troubleshooting Assistant
iPod touch Troubleshooting Assistant
iPad Troubleshooting Assistant
If the issue persists after following the troubleshooting assistant, continue with the steps below, testing to see if the issue is resolved after each section.
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Update to the latest version of iTunes and Install software updates on your Mac.
Check USB connections. iOS devices require USB 2.0 to function properly. If you are not sure if your Mac has USB 2.0 ports, refer to the computer's specifications. Disconnect other USB devices, and connect your device directly to a USB port on your Mac.
Restart your Mac.
Mac OS X v10.6.8 or earlier only: Reinstall the Apple Mobile Device Service.
Additional Information
In rare circumstances, your device may be recognized after reinstalling iTunes, but after you restart your Mac, the device may not be recognized again. If this happens, and you are using Mac OS X v10.6 (Snow Leopard), please follow the steps in this article.

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After iOS8 update, iPhone 5s will not sync with my computer backup. Get an "unknown error" message.

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