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Level 1

31 points

Iphone disconnected problem during backup

I have a problem when I am trying to make a backup of my Iphone 7 and iTunes via USB cable - Iphone disconnected problem - "iTunes could not back up the iPhone because the iPhone disconnected". I cannot backup to my computer. In the same time, Wi-fi backuping to iCloud was completed succesfully.

I am using latest iOS 10.3.3 and Windows 10x64 (version 1703, build 15063.483) with all updates and latest iTunes 12.6.2.20 and good ASUS motheboard with good powerful USB 3.0 porrts and original Apple USB-ligtning cables.

I tried to use 3 different cable and 4 different USB ports, with no result.

I tried to reinstall everything, I stopped antivirus, activated "At the Plane" mode, and made all other tricks which I found here, with no result.

I had this error with previous versions of iOS and iTunes as well, but when I had iPhone 5, I did not have this error on the same desktop computer.

iPhone 7, iOS 10.3.3, Iphone 7

Posted on Jul 23, 2017 7:18 AM

Best reply

kosmas0

Level 1

55 points

Posted on Aug 13, 2017 2:36 AM

I posted my solution in another post too (check my profile),credits to iMazing team.

I will try to describe the steps:

The is a bug in iOS 10.3.3 that prevents the backup due too special characters in the files.So you have to find that app and uninstall it.

I will try to describe the steps:

-Install iMazing

-Run a back up (with iMazing not iTunes) and check the process bar % and remember the number where the backup will fail

-From iMazing start menu press "show device console",move the windows somewhere near and press PAUSE

-Start a backup again and 5-10 % before the error happens, press RESUME on device console.

-As soon as the backup fails,pause the console and press SAVE,to create a txt file.

-Now it the file search for "No operation found for path"

-You will see a line like "'No operation found for path: /var/mobile/Containers/Data/Application/9944C65F-F8E5-4CA5-951B-7B6AF0A40D1D/Documents/File-Name-With-Special-Characters'

-The first bold string is the Unique ID of the rogue APP and the second it the rogue file name.

-Try to identify the file from the type or name by googling and delete it.

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105 replies

Squiddz

Level 1

69 points

Sep 22, 2017 6:55 AM in response to dcook1967

I totally understand. I can only speak for myself. When I had upgraded to the previous version of iOS, and couldn't back up, one of the suggestions made was to delete the old backups, which I did. That solution did not help me and I was stuck without a backup from that time all the way till I upgraded to iOS 11. Personally I wasn't too concerned, I didn't have anything on my phone which I couldn't recreate. I know that isn't the case for everyone though. Sincerely wishing you the best of luck!

Squiddz

Level 1

69 points

Sep 22, 2017 6:56 AM in response to dcook1967

I should add, I did the iMazing suggestion & found files with non-ascii characters but was unable to identify the app or file in order to remove it or change the name. I did NOT contact iMazing but they possibly could have helped.

can42

Level 1

8 points

Sep 22, 2017 11:38 AM in response to Squiddz

Try iExplorer (iPhone Music, Messages & File Transfer for Mac & PC · iExplorer; not Internet Explorer). This will let you browse and search all your user files on the phone. Start by searching for the file extensions of the offending files (you'll see an abbreviated filename in the iMazing log). Since the filename is abbreviated It took me a little while to find exactly which app/file was causing the problem. But when I found it, I simply changed 1 letter in the file name and this fixed the problem.

Sep 29, 2017 7:19 AM in response to heikose

Today I finally was able to backup my iphone since July, I look for documents with special characters, I found some in NOTES. I also erase some new apps I install after July and it works. I do not know if was the name change on the NOTES documents or the apps clean up, but it work for me, good luck.

biggie69

Level 1

19 points

Oct 3, 2017 3:48 PM in response to gedonis

Had the same issue as everyone, tried a number of things (new cables, restarting, disconnecting other devices, background app refresh, etc, etc).

iMazing was what worked for me, following these instructions found elsewhere in this thread: https://imazing.com/blog/ios-10-3-3-device-disconnected-error-during-backup-fix.

Found out it was FIRECHAT app causing the issue.

I deleted FireChat from my iPhone, then deleted again using iMazing App mgmt when the phone is plugged in (for some reason it was still showing up w/in iMazing but not on my phone).-->Restarted iphone/itunes/iMazing, ran backup via iTunes and it's now working.

(Other variables that may/may not have contributed: Just prior to my backup working, I renamed my phone on the iTunes side bar when it was plugged in. My carrier settings update from AT&T a while back changed it back to just “iPhone”, so I changed it to what it had been previously, although I doubt this had any affect.)

Aug 25, 2017 8:38 AM in response to benso888

benso888 wrote:

Welcome. Hope Apple to resolve this issue in next iOS release

"Hope" doesn't make things happen. Providing feedback sometimes does: https://apple.com/feedback.

benso888

Level 1

14 points

Jul 23, 2017 8:16 AM in response to gedonis

This issue was happened after installing iOS 10.3.3. The problem is on this iOS.

Now, many ppl cannot backup through itune after upgrade to 10.3.3. Hope Apple to resolve this issue asap.

Jul 23, 2017 8:20 AM in response to benso888

I wouldn't count on Apple doing anything. It is a problem with your phone, not all phones on 10.3.3. For example, it is not a problem for either of my 2 iOS devices. Both back up perfectly well.

benso888

Level 1

14 points

Jul 23, 2017 8:26 AM in response to Lawrence Finch

You are one of lucky guy not having this problem. I see other thread and some ppl face this problem now. Hope Apple to resolve it asap. This issue will not happen at ios 10.3.2 in such ppl before.

Jul 24, 2017 7:09 AM in response to gedonis

I've got the same issue after upgrading iOS to 10.3.3 (MBP 15" 2014 + iPhone7). So disappointing.

Jul 24, 2017 7:53 AM in response to volodymyr_k

Have you updated iTunes to the latest version (12.6.2.20)? It is required for 10.3.3, and was released at the same time as 10.3.3.

Jul 24, 2017 7:59 AM in response to Lawrence Finch

Yes, iTunes is 12.6.2.20.

gedonis Author

Level 1

31 points

Jul 24, 2017 12:59 PM in response to benso888

Very interesting idea, but I do not have apps more than 3GB (800MB is max)

benso888

Level 1

14 points

Jul 25, 2017 5:53 AM in response to eugchem

Hi, I remove all apps that is over 3GB. In addition, one of key app is media player that will store many mp4 mp3 for playback. After I remove it, backup was success.

Jul 30, 2017 4:34 AM in response to gedonis

I am having the same issue since updating to ios 10.3.3. Have you had any luck finding a solution?

Iphone disconnected problem during backup