Since updating to iOS 10.3.3, neither my iPhone SE nor ipad air will back up. No problems with syncing, but backups produce a fail with either iTunes 12.6.1.25 or using CopyTrans Shelbee. The iTunes error message is "iTunes could not back up the iPhone because the iPhone disconnected"
iPhone SE, iOS 10.3.3
Hi
Go to iCloud on iPhone / ipad check iCloud back up is on Then backup now over your wifi If you leave iCloud backup on when you charge an iphone / ipad it automatically backs up to iCloud Over your wifi.
I haven't use my pc for backup for 3 years All done over wifi.
Cheers
Brian
Hi all,
I found the cause and workaround solution for this case. If you received this error, the reason that you have some apps that size is too large (may be more than 3 GB size or something). At normal, such app should be file explorer or container or media player or some thing. Then, itune will show that iphone disconnected problem during backup. For my case that is related that my media player have around 50GB media files inside.
It cause this problem.
You have several workaround ways to resolve this issue.
Case 1. Don't use such app. remove it.
Case 2. Use such app and store the data into clouds and reduce local storage
Case 3. Some apps contain function not to perform backup through iTune. Enable such feature
Hope this work around can help you. In addition, this should be the bug in Apple iOS and iTune. Hope Apple will resolve this issue asap.
I have same issue too. all backup works fine in iOS 10.3.2. After upgrade to iOS 10.3.3, backup cannot become success anymore. Hope Apple will resolve this issue asap.
Yes, I just checked an older phone which still uses 10.3.2 and it backs up successfully. So the problem seems to lie with 10.3.3.
Yes, me too. Now I am testing workaround solution for this. If find out, will post it in here
Thanks, Brian but not a viable solution for me.
Not working, i erase all media, all heavy app with media (whatsapp, telegram), enable air mode. Nothing helps. Backup 640-650 Mb, and disconnect
Same experience as Troy G. And similar failure whether backing up to PC or to iCloud.
Do you have some apps for storing files? If yes, please try to remove it first.
I certainly do, but if I have to remove those in order to back up, I may as well junk my iPhone and iPad
nope, i removed any heavy app. I left only apps < 700Mb
I have learnt that this problems is not uncommon, but not always present. Apple is aware of it and recognise that there is a bug in 10.3.3 and are working on a fix.
OK - I have no idea how or why this has happened but backups are now working. I have made no changes to any of my hardware or software to get this to happen (at least none that I am aware of).
iphone ipad backup fails
