Tag Archives: DFU mode

[iPhone] Workarounds for Issues with PwnageTool/QuickPwn for Firmware 2.1

We read all over the net and found some solutions to the most common issues that occurred. If you are kinda conservative user, we’d recommend not to update to firmware 2.1 and wait until a PwnageTool and QuickPwn update has been released. Since the iPhone Dev Team is reacting very fast, this should take only some days.

Known Workarounds:

Error 1600 and Error 6: restore with stock firmware 2.1, then QuickPwn (you may then put into restore mode and install custom IPSW, but it’s not necessary- credits to “HomeGrown”).

Error 1600: when Pwnage asks, if already pwned your device, answer NO, no matter if you pwned if before or not (credits to “Maurofoto”)

Error 1600: let iTunes download firmware 2.1 again (you may delete it from the local folder if you already downloaded it via iTunes. Folder on a Mac: ~/Library/iTunes/iPhone Software Update/), then exit iTunes, prep a custom IPSW using Pwnage, delete the iTunes downloaded firmware from the above mentioned folder again and copy your custom IPSW to that folder, but name it exactly as the original firmware was named (credits to “Markat”)

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[iPhone] Geohot releases iRan

iRan is a tool that makes use of Geohot’s findings dated last year about the iBoot. He found out that in DFU mode it offers a full interactive shell. But it took almost a year to allow execution of non-signed code. The iPhone Dev Team now used this in their Pwnage Tool 2.0 for expanding privileges in order to perform activation and jailbreak of iPhones.

Geohot provides this tiny tool “to run whatever you want at the DFU level. (..) Pass it a binary file, it will start executing at the start of the file(no file formats to deal with).”

We’ll leave it up to you to find out what you can do with this tool…