opensn0w is a portable utility designed for the easy injection of kernel and boot loader patches along with exploit injection. Currently, we remove the signature checks in iBEC and iBSS (both of which are boot loaders) and signature and sandboxing checks in the kernel.

opensn0w has other interesting functions too! Feel free to prod around!

opensn0w is a portable and open source jailbreaking utility. opensn0w has been compiled on both little endian and big endian systems. These include the Intel i386/x86_64 processor architecture and the Cell Broadband Engine in the PlayStation 3. We have successfully booted an iPod touch 4th generation running iOS 5.0.1 on both of these platforms.

opensn0w first connects to the target device in DFU (device firmware update) mode. We then detect which processor is in the target system, such as the Samsung S5L8930XSI (Apple A4) and then the appropriate exploit is injected and then we upload our patched iBSS which loads a patched iBEC which will load our owned kernel. On the s5l8930/8922/8920 we use the limera1n exploit made by geohot to own DFU signature checks. Support for the s5l8900 has not yet been implemented.

Even though opensn0w is open-source, we still need devices for testing! You don't have to, but donations would be greatly appreciated, monetary or device-wise (devices are preferred however!). But don't worry, opensn0w will always remain free and open-source, for it is one of the main tenets of this project. ;)

Please contact rms@velocitylimitless.org for opensn0w donation matters.

We also can't catch all the bugs, so help us squash them!

opensn0w is open source. redsn0w is not. opensn0w will work on the most arcane platforms such as a Linux based toaster with libusb and a EHCI controller. redsn0w will not.

Of course, we honor the GPL, and all our code is open. We used code from xpwn, written by planetbeing and the iPhone Dev Team and also libirecovery and syringe from the Chronic Dev Team. Their code is their property, we just modified it to fit with our project's needs.

We're working on the actual project as quick as we can. We have lives too. :).

• Just make sure to install development packages for:
  • readline
  • zlib
  • libpng
  • libpthread
  • libssl (openssl)
  • libcurl
  • libusb-1.0

And punch in make, and you're done!

• 2012/Apr/14 - Version 0.0.0.3-pre!
• 2012/Mar/31 - Version 0.0.0.2.
• 2012/Mar/03 - Version 0.0.0.2-pre!
• 2012/Feb/03 - Version 0.0.0.1-pre!