If you updated your iPhone 4, iPhone 3GS, iPad 1, or iPod touch to iOS 5 yesterday evening — or if you’re only just doing it now because Apple’s servers were hammered to smithereens last night — your first port of call is jailbreaking and installing Cydia. Because the beta builds of iOS 5 were relatively easy to obtain, jailbreakers have easily kept pace with any of Apple’s security tweaks. The final build of iOS 5 was released yesterday, and the Redsn0w jailbreak, courtesy of theiPhone Dev-Team, was released just minutes after.
Now, at this point we should remind you that this is a tethered jailbreak — you’ll need a Windows or Mac computer running Redsn0w every time you reboot your iOS device — and there doesn’t seem to be a confirmation that the Windows jailbreak works. Also bear in mind that this jailbreak won’t work with the iPad 2 or iPhone 4S; the A5 processor doesn’t have a bootrom-level exploit yet (today’s jailbreak still uses Geohot’s ye olde limera1n exploit).
With that out of the way, and remembering that you could always brick your device, here are your Redsn0w 0.9.9 download links:Windows / Mac. Make sure iTunes is updated t0 version 10.5 (iTunes > Check for Updates), check your device has iOS 5 installed, and then run Redsn0w. Click “Jailbreak” and follow the on-screen prompts. If you’re new to jailbreaking, hit up Redmond Pie’s step-by-step walkthrough.
Redmond Pie also has a guide on how to downgrade from iOS 5 to the last stable version of iOS 4.3, which you may have to do once a tethered jailbreak emerges.
Read about iOS 5′s hidden gems and features, or check out our iOS 5 coverage
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