As you know that red-snow 0.9.5 jailbreak tool for iPhone OS 4 works only for iPhone 3g, so this news might sound good if you are an iPhone 3GS owner as an ex Apple employee KaatjeNL has successfully managed to jailbreak iPhone 3GS, so now you can jailbreak your iPhone 3GS that has iPhone os 4 installed. The best part of KaatjeNL’s jailbreak method is that it doesn’t upgrade your baseband which means that you can use your old baseband i.e ultra snow while running OS 4 on you iPhone 3GS.
According to KaatjeNL
This is a work in progress but I thought I would share the results so far. Cydia still has some issues, many applications install but crash, some examples include mobileterminal, sbsettings, five icon dock. I did this only to hopefully motivate the developers to get their applications ready for 4.0 as it is coming very soon and the last thing we need in the community is to have repos full of broken apps! I accomplished this by patching asr, lockdownd, LLB, iBEC, IBSS, iBoot, kernelcache, MobileSafari, Services.plist, and fstab. The binaries were patched with IDA Pro and OxED and were then diffed against the original pwned files with bsdiff to create patch files. I then took the diff files and built a firmware bundle that I dropped into Pwnagetool and updated the cydia tree within Pwnagetool as well. Once this was done, I created a custom ipsw with Pwnagetool, unzipped it, applied a pwned LLB from a pwnagetool generated 3.1.3 ipsw, zipped it back up and restored to my device. At this time I am unable to get my T-Mobile NL sim to work so I downgraded back to 3.1.3 after playing around with 4.0 for a while. I look forward to the release and the official unlock from the Dev-Team. Many thanks to @p0sixninja for many hours patiently showing me the tricks and tips of jailbreaking 4.0b3 and then setting me out on my own to do beta 4. Without his tutelage, this would not have been possible
There is no Time of Arrival given for this release. This method will probably be used in the next version of PwnageTool to jailbreak the final version of iPhone OS.
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