greenpois0n has answered many prayers of jailbreakers today by providing an untethered jailbreak for iOS 4.2.1 for iPhone 4, iPhone 3GS, iPod Touch 3G, iPod Touch 4G and iPad. Along with this, there’s a surprise element in the Read Me file for greenpois0n RC5 which shows Verizon iPhone 4 in the list of supported devices but untested since obviously, the device hasn’t been released yet. What seemed like might be a long time to jailbreak the CDMA Verizon iPhone 4, seems like an early possibility now.
Check out the complete readme file below:
*** greenpois0n 1.0 RC5 ***
> Description of the software:
greenpois0n will Jailbreak your iDevice.
> Supported iDevices:
– iPod Touch 2G (all bootroms)
– iPod Touch 3G
– iPod Touch 4G
– iPad 1G
– iPhone 3Gs (all bootroms)
– iPhone 4
– iPhone 4 Verizon (_not_tested_)
– AppleTV 2
> Requirements (check this !)
– a supported device (see above)
– the device should run iOS 4.2.1. Please check on the device in the Settings -> General -> About page.
If your device is running an older version, please upgrade iOS first using iTunes.
*** If you want to SIM Unlock, preserve your baseband using TinyUmbrella ¨***
– at least MacOSX 10.5
> Notes (checks this also !)
– if your device is jailbroken with iPhone Dev Team’s Monte, please restore to fresh 4.2.1. first
– if Cydia doesn’t show up after Loader, you may need to reboot the device
– this version of greenpois0n doesn’t include a patched activation system. You’ll need to activate your device using iTunes
– WE DO NOT SUPPORT PIRACY !
> Instructions
1. plug the device to your computer using the USB cable
2. quit iTunes if it shows up
3. start greenpois0n.app
4. follow instructions
5. the device will boot a 1st time with verbose text on screen. This operation will install the jailbreak on the device.
6. the device will reboot normally
7. start the Loader application (green icon on the SpringBoard), and follow instructions to install Cydia
> Credits (alphabetical order)
Chronic-Dev Team (follow us on twitter):
– AriX : @AriX
– chronic : @chronic
– DHowett : @DHowett
– jan0 : @0naj
– Jaywalker : @Jaywalker9988
– OPK : @iOPK
– pod2g : @pod2g
– posixninja : @p0sixninja
– semaphore : @notcom
– westbaer : @westbaer
Greetings: chpwn, comex, geohot
> Donations:
Donations are always greatly appreciated and will permit to buy new devices to make tests for future jailbreaks. ( http://www.greenpois0n.com )
Meanwhile, if you have an iPhone 4 currently, go ahead and follow our guide to jailbreak iOS 4.2.1 on it. If you run into any issues, check out our guide on fixing them.
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