GeoHot Says: USBDumb your ECID Field – Do it now!
According to GeoHot, a former member of the Dev Team, has announced that Apple have apparently added a new layer of security to the iPhone 3GS called the ECID field. He recommends us all to ‘dump’ the contents of this so that we all have a copy before the next firmware comes out. Without this, you may not be able to jailbreak your iPhone 3GS in the future.
Here is his original post:
Apple has added a new layer of security to the iPhone 3GS. I mentioned it several posts earlier; it’s the ECID field. When iTunes starts the restore process, they contact Apple servers to generate signatures just for your device. It’s important you get these signatures for your phone before a new version of the software comes out. I had previously suggested doing this by dumping usb while the iPhone restores. But this is complicated.
Fortunately, the good folks at purplera1n are here for you, the end user who wants a jailbreak. Follow these instructions to generate a unique certificate for your phones iBSS. And don’t delay, Apple may change their minds. To clarify, this is instead of a usb dump. Do this, and you are good!
1. Put your phone into recovery mode and connect it to your computer.
2. 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:”
3. Go to purplera1n, type it, and hit enter
4. Save the generated file for a purplera1nyday…
It is up to you to do it or not but I would recommend it because whether or not its true, inleast you will have it if it is true.
Also, Yozh from Geohot’s websites added, you do not need to actually restore to do this. You only need to go into restore mode.
To get out of the recovery mode just hold power+home it will shut off then press power it will go back to normal.
DOWNLOAD USBVIEW
Post je objavljen 01.07.2009. u 13:16 sati.