The ipad cannot be synced. An internal device error occurred.

Yesterday I updated my iPad Pro 9,7" to iOS 11. All went well. But when I thought I was entering my Apple ID for iTunes, I was tricked into iCloud. I never use iCloud. Not on my iMac and not on my iPad. I just don't want to use it.

When I opened my unwanted iCloud account every button was set to ON. It took me a lot of time to set every button to OFF. In the meantime a lot of my documents (photos) were copied to iCloud. I had to delete them from my iCloud Drive. After I logged out of iCloud I discovered that all my photos were deleted from my iPad.

Of course I had a backup on my iMac. I always sync my photos (and books and music) with iTunes on my iMac. I have updated iTunes to the latest version.

Never before I have had problems with this procedure. But this time all went wrong. It said there was no iBooks App and no Music App on my iPad and after that I discovered that all my books and music was deleted on my iPad.

Several times I got the message "The ipad cannot be synced. An internal device error occurred."

I tried all the usual things - restarted the iMac and the iPad / changed the cable (all Apple cables) / changed the USB port. I succeeded in restoring my books and my music but not my photos (more than 3000). It stops halfway with the above message and than only a few hundred photos are copied.

Before iOS 11 syncing with iTunes always worked great. Now I don't know what to do to solve this problem.

iMac, OS X Mavericks (10.9)

Posted on Sep 22, 2017 2:53 AM

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Posted on Oct 2, 2017 1:14 PM

I’ve spent several days dealing with this. The best solution was to erase all contents and data from my iPad and start over. I started by syncing just the photos, nothing else. I got the internal iPad error once. But all 103 photo albums had synced to placeholder icons along with about 400 photos which were synced to the correct albums. I hard rebooted the iPad and synced again and again and again over several hours. Hard rebooted every time. Eventually all photos 21,000+ synced to the iPad and into the appropriate albums. Only after that did I sync everything else which worked just fine. Good luck!

449 replies

May 15, 2018 3:46 PM in response to WSC33

iMazing is a good iTunes alternative. Personally I still prefer iTunes; maybe there’s a bit of Stockholm Syndrome about the whole thing but when it works it works well. I just wish Apple would a) stop making changes to the UI just for the sake of it and b) patch those annoying bugs a little faster.


But if you reach the point where iTunes has annoyed you one too many times, try iMazing.

May 18, 2018 10:04 AM in response to Paardeslager

I'm quite relieved to find this thread. I just upgraded from an iPad Air to a second hand iPad Air 2 which I drove 200 miles to get and was having all kinds of problems trying to synch my photos and music - getting a repeated internal device error made me think that I had bought a dodgy iPad.


It's a long thread so I haven't read it all - suffice to say that of my 9,000+ photos and 8,400 songs, a hundred or so seemed to synch at a time before a failure of some sort and the non-synched songs would appear grey. I had the idea that repeated synching might eventually work but I felt that something was fundamentally wrong so I deployed all my diagnostic experience by trying different USB cables, synching via WiFi, deleting playlists etc. etc.


So, anyway, I am back to just hammering away with repeated synchs to see if I can get all my songs and photos on there eventually - maybe even before iOS 11.4 is released.

May 30, 2018 4:45 AM in response to Paardeslager

A poster on the “slow sync” thread here Re: Slow Sync between iPhone & Computer is saying that the latest iTunes fixes that problem. Between that and iOS 11.4 it looks as though Apple may finally have nailed these two persistent bugs.


I won’t be in a position to test this for a couple of days but here's hoping. Even if it is fixed, the time take to do so is ridiculous. These sorts of delays are what lead many Apple users to delay applying updates in case they break something for months on end. This is not good for security or for PR. And of course people who buy new devices are stuck with the latest version of whatever OS they’re running, bugs and all. This isn’t the user-focused Apple I used to know.


Sorry for the mini-rant but I feel more disillusioned with Apple every time one of these edge-case but persistent bugs shows up. Apple still make fantastic hardware and integrate it beautifully with the software, but that software is increasingly flaky and their customer support increasingly slow and opaque. It's very disappointing.

Oct 13, 2018 7:51 AM in response to Sunshine4a

Sunshine4a and WSC33


I have updated my iPad Pro 9.7 to iOS 12.01.

Today I have synced some new photos from my iMac to my iPad.

As before - no problems at all. All photos were in Photos on my iPad and all in their specific albums.

So it still works.

I know you work on a Windows computer instead of an iMac, but the problem was with iOS 11, and it was resolved in iOS 12.

I hope this will help you.

Oct 2, 2017 12:04 PM in response to cshen

I am having the very same problem too....since updating to IOS 11 then ISO 11.1 I’ve had nothing but trouble !!

on top of the music issue...I cannot get on to my photo albums whilst using messenger or on Facebook.....I’m ready to throw everything in the bin !!

I’m not technical at all, so am desperate for help to resolve these issues.

Good luck everyone 😉😫😩

Oct 17, 2017 9:52 AM in response to beasterjr

Thanks for the advice.

I have spent 3 days on this and lost over 34,000 photos from my iPad (5th Gen IOS 11.0.3).

Luckily they are backed up and also on my iMac which I am trying to sync with.

First I was getting error message "failed to sync" now I'm getting "internal device error" however, I have managed to sync 1413 photos (oddly only ones from 2015?) - running it again now i have moved to 2115 photos with some now from 2014! Before it failed.

So I will continue working on it unless apple come up with a fix before then.

Oct 19, 2017 3:58 PM in response to Paardeslager

I've been having the same problem with both my iPad Pro 9.7 & my wife's Air 2.


Firstly, we should not need to re-sync photos after a software update but all too often photos already on the devices are "scrambled" by the update, appearing in different albums or missing completely. Apple have had the same issue with iOS updates on a regular basis for ages and I'm tired of complaining to them about it. Does anybody there actually beta test these updates before inflicting them on their customers?


This new issue with iOS not syncing more than around 300 photos at a time just compounds what was already an annoying problem. Now to restore photos after an update has corrupted them, instead of just letting iTunes do its thing for a few hours, you have to constantly monitor it & hit "sync" again every time it stops. Sometimes that's not enough & you need to disconnect & reconnect the iPad to initiate the sync from the start which means going through the interminable backup delay. I had about 16,000 photos on both of our iPads but no way am I going through this nightmare to restore them all; I'll just use the Google Photos app to look at them in the cloud or view them on my NAS when at home.


This is really amateur stuff from a company that claims to make technology easier to use. I have no such issues with my Android devices... just sayin'

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The ipad cannot be synced. An internal device error occurred.

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