iPhone 3GS Jailbreak Delayed until Firmware 3.0.1 and How to backup your ECID key
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After Dev-Team reported that the Jailbreaking/Unlocking technology (read redsn0w, ultrasn0w respectively) will also be applicable to the iPhone 3GS, GeoHot mentions that a new security layer (called ECID) is built in the 3GS.
The advice GeoHot is giving, is that users that want to jailbreak/unlock their 3GS in the near future should generate a certain ‘certificate’. The thing is this:
When iTunes starts the restore process, they contact Apple servers to generate signatures for your device. It’s important you get these signatures before a new version of the software comes out.
So these certificates, which you should generate NOW, might save you a jailbreak/unlock in the future.
And here’s how it works:
Put your phone into recovery mode and connect it to your computer.
Using usbview on Windows(enable Config Descriptors), System Profiler on Mac, or lsusb on Linux, read your phones ECID. It’s the 16 digit hex number after “ECID:”
Go to “Options/Config Descriptors”
Clic on “File” / “Refresh”
Chose “Apple Recovery (iBoot)”
and copy (ctrl-c) your ECID code that should look like something like this: 000000DSHA015DS4
Go to purplera1n, type it, and hit enter
Save the generated file
KEEP IT SAFELY!
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