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iTunes won't update iPhone software

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Last Modified: 2020-06-14
I am running Windows 10, and only use iTunes to synchronize my iPhone 6 with my Outlook Contacts and Calendar.  For the past couple of months, when I open iTunes, I get a message that there's a software update available for my phone.  But, after running the update I get the following message:

iTunes Error
I have the most up-to-date version of iTunes - what else can I do to fix this problem?

Thanks,

Phil
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William FulksIT Services Analyst
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Commented:
You wouldn't happen to be using an off-brand cable? I have seen those cause problems when it comes to data transfer.

Author

Commented:
Interesting question.  I always try to buy good quality cables, but since it's a Micro-USB plugged into my Mophie case it's definitely not an Apple cable.  I'll try taking the phone out of its case and plugging the Apple cable directly into the phone, and see if that solves the problem.  Thanks.

Author

Commented:
Well, it was a good thought, but still got the same error.
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Commented:
Check that the iPhone is updated.
Check that the Mac is updated.  Which version of OS X do you have?
Check that you have the latest iTunes.
Eoin OSullivanConsultant
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Commented:
Are you backing up the iPhone via iTunes on Windows or using the online iCloud backup?  Is the iPhone loading on Windows 10 and working with iTunes in all other respects and it is only the software update process that is failing?

Windows 10 has a "trust" policy for peripherals and it can happen that the iPhone needs to be refreshed to allow Windows 10 to detect it and to allow iTunes to manage it.

Have you tried checking that ?
https://www.technipages.com/itunes-fix-iphone-or-ipad-not-detected-in-windows

Author

Commented:
serialband,  I am running Windows, not MAC.  I have the latest version of iTunes.  I do not  have the latest iPhone software, which is the whole point.

Eoin OSullivan,  Thanks for the reply.  I use the local iTunes for my backups, which seem to work fine (so does everything else on iTunes, as near as I can tell).  I do get the "Trust this Computer" message when I plug in the iPhone - and sometimes have to plug and unplug it a couple of times for iTunes to recognize it, but eventually everything except the update seems to work.

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Commented:
Your error indicates that the download of update has been blocked.

You need to uninstall your antivirus / Internet security software and restart computer and try the update again.

Author

Commented:
Even though I never used to have to do this, I turned off my Internet Security protection and my Malwarebytes, and then attempted the iTunes update ... but got the same error message.
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Distinguished Expert 2019

Commented:
Disable is not equivalent to uninstall.

If you are not confident on the antivirus issue, you need to take the offline approach and download the iOS update firmware (an .ipsw file) and manually update the firmware to your iPhone.

Author

Commented:
How do I find and install the ipsw file?  Thanks.
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Distinguished Expert 2019

Commented:
https://ipsw.me/download/iPhone7,2/16G192

Before doing anything, please make sure you have got a valid backup of your iPhone.

https://support.apple.com/en-us/HT203977

Most people will not have a paid iCloud account. Follow the iTunes method.

Author

Commented:
Jackie,  I downloaded the file, and when I tried executing it iTunes opened but there was no evidence of anything being installed (or run).  I have a paid iCloud account, and my iPhone is backed up locally and in the Cloud, but I don't know how to Manually update the phone?  Thanks.
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Distinguished Expert 2019

Commented:
Check your backup first.

Go to the location below.

C:\\Users\[your user name]\AppData\Roaming\Apple Computer\MobileSync\Backup\

Right click the latest folder and select properties

You will see how large is the backup. Does it match with the size of the internal storage of your iPhone?

This step is very important. If you do not have a valid backup and when the update fails, you cannot restore from your latest backup and you need to start with the setup from a new iPhone.
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Commented:
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Commented:
The above steps are complicated for beginners. If you are not confident, you might need to ask your fd or colleague who is competent in IT gadgets to help you.

Author

Commented:
Good news/Bad news.  My backup folder only shows a little over 1 GB, though my iPhone storage shows I'm using over 13 GB.  Don't know why :(.  But I'm not sure I need to worry about it, since (other than my apps) I don't depend on my iPhone for any data storage.  I just synchronize my phone with my Outlook for Contacts and Calendar - and when I make changes I only make changes in Outlook.  So do I need to worry?  

Assuming I'm OK on the data front, what's the next step for updating the phone's software/firmware?

Author

Commented:
Ooops.  Sorry.  I wrote my response before seeing the next steps.  I'll try them.

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Commented:
Data is always important.

It will be troublesome for you to install back all apps with no in-app data? Just like when you start to use your iPhone as a new iPhone.
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