So simply check your i Tunes for updates, and update it to the newest if it wasn't.
And if your i Tunes is up-to-date indeed, move on to solution 3. "Security software created by companies other than Apple can prevent i Tunes from connecting to Apple servers or to devices.
From this article, you can fix the i Tunes error (-54) with these solutions above.
Meanwhile, you can also recover what you want from your i Phone by Primo i Phone Data Recovery.
But these outdated software can cause trouble, just like this i Tunes error 29.Step 1: we recommended – you should have install the latest i Tunes Version Step 2.In this Step- you should do Restart your Mac or PC. Ensure that your computer is up to date OS (Mac or Window); if an update requires a restart, then check after restart again.These kind of errors occurs if the (i OS 7, i OS 8) devices unexpectedly disconnecting during the restore, update or i Tunes could not tell the device to go the restore condition.Whatever but don’t worry now; we’ve solution if you see an error message which are given below.