Apple Configurator 2 can rename iOS devices. To use Apple Configurator to rename a device, first plug it into a Mac running Apple Configurator 2.
From Apple Configurator, right-click on the device and choose Device Name… from the Modify menu.
At the “Rename device” screen, enter a new name for the device and click on Rename.
Alternatively, you can use the (+) menu to choose variables to use during the renaming process. Here, you can choose to base a name on a Serial number, the Number, the device Type, or the Capacity of the device.
Once you enter new information, click the Rename button to change the name of the device.
krypted November 6th, 2015