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ECID
The Exclusive Chip ID or ECID, is an identifier unique to every unit.
ECID looks like this: 00000XXXXXXXXXXX (hex)
Please be aware that some tools display the ECID in decimal format.
The ECID is a very important element in the SHSH Protocol
Get your ECID
Mac Instructions
- Put your device in Recovery Mode or DFU Mode.
- Open System Profiler. (in /Applications/Utilities/)
- In the sidebar, go to "USB" (in the "Hardware" section)
- Under "Serial Number", there should be a part called "ECID". There you go.
Windows Instructions
- Put your device in Recovery Mode or DFU Mode.
- Open Device Manager and right click on Apple Mobile Device (Recovery or DFU Mode) for properties
- Click on the details tab
- Click on the dropdown box and select Device Instance Path
- You should find it in the textbox
Developer Instructions
Call the AMDeviceCopyValue function in the MobileDevice Framework with the "UniqueChipID" value. It returns the ECID as a CFNumber(kCFNumberSInt64Type) object.