Q: Hello sometimes after downloading update from I Tunes for i Phone or I pad when i am updating each of them it shows to me error number 3014 .i have to  unplug the devises several times till my devises be updated .what is the meaning of error 3014 and

This Apple support page describes Error 3014

Resolve iOS update and restore errors - Apple Support

Resolve network errors

Related errors: 17, 1004, 1013, 1638, 3014, 3194, 3000, 3002, 3004, 3013, 3014, 3015, 3194, 3200, or "There was a problem downloading the software," or say the "device isn't eligible for the requested build.". These alerts mean that your computer is either having difficulty contacting the Apple update server or communicating with your device.

Check your computer for software or settings that might cause communication issues between your computer and Apple or between your computer and your device.