While updating my iphone i disconnect usb cable
Delete backups would eliminate errors caused by reading or trying to update it.
Give this solution a try and see if you can fix i Phone disconnects problems.
Recently, many i OS users keep emailing us complaining that while backing up i Devices before i OS update, a message pops out saying “i Tunes could not back up the i Phone because the i Phone disconnected”.
Actually, many i OS users might also encounter problems like “i Tunes could not restore the i Phone because the i Phone disconnected”,” i Tunes invalid response“.
If you are also stuck on such i Tunes backup or restore problems, here are some quick fixes.
For the majority of issues about “i Tunes could not backup the i Phone because the i Phone disconnected”, the USB cable is the first to be blamed. Be free to reset network settings for it does no harm to your existing data on i Device.
This is a solution that many i OS users forget to try.
When you are getting the message of “i Tunes could not restore the i Phone because the i Phone disconnected”, the three solutions below can be helpful.
Select the data you want to restore to your i Phone, click the To Device tab.
You can also save these data on the computer as a printable and viewable format.
Matching your device identifier with the backup folder name could be helpful to solve issues of i Tunes could not backup the i Phone because the i Phone is disconnected.
For more detailed steps to rename the old backup folder, please refer to How to Rename the Old Backup Folder While backing up i Device with i Tunes, it is recommended to turn on Airplane mode and Low Power Mode, then turn off Background App Refresh.
(Take Photos as an example) The lockdown folder is a protected folder on your computer containing temp data.