Information Technology Reference
In-Depth Information
Using the device summary
The device summary displays a selection of useful information about a connected device, including the follow-
ing:
Device type:
iPhone, iPod, or iPad.
Device model.
ECID (Exclusive Chip Identification Number):
This is a unique serial number embedded in each
device. Apple added ECIDs to iOS devices from the iPhone 3GS onward. The ECID is passed back to
Apple's servers when you attempt a firmware restore or update. (The technology is supposed to prevent jail-
breaking, but it was circumvented almost immediately.)
Identifier:
This is a long hex string and is another unique device identifier. This identifier is embedded
in provisioning profiles and in apps downloaded from the app store and is used in the App Store DRM (Di-
gital Rights Management) technology.
Software version:
The menu shows the version of iOS installed on the device. You can select other ver-
sions and install them by selecting the Restore iPhone button.
Provisioning:
This displays a summary of the installed provisioning profiles. A small red cross appears
when profiles are out of date. Select the small gray arrow to view the separate Provisioning Profiles page, de-
scribed later.
Applications:
This item lists your test apps. Use the small gray arrow to select the separate Applications
page. The app icons appear under the list. The “FairPlay-encrypted applications” text tells you how many
apps are installed in total, including test apps and other apps.
