I updated iTunes to 12.2.2 and noticed my iPad was due for an update as well. Plugged it in to iTunes and let it do the download and update. However when I checked the iPad a little later it says to plug it into iTunes and iTunes is saying it has an error 4005. I checked that out and followed all the instructions but iTunes is not recognising the iPad even though the iPad is saying plug me into iTunes. I have rebooted the computer, switched cables, tried to reboot the iPad, turn it off/on, all to no avail. Any further suggestions please?