Can I jailbreak my 4.2.1. iphone 4?

[ash213]

Just bought brand new iphone4 ,its 4.2.1

can i jailbreak it?

[Simon]

You can jailbreak with redsnow 0.9.6b6 but it will be a tethered jailbreak.

[ash213]

You can jailbreak with redsnow 0.9.6b6 but it will be a tethered jailbreak.

where do i locate this software and instructions?
thanks

[Stray]

If you have windows here is the link http://sites.google.com/a/iphone-dev...edirects=0&d=1
If you have a Mac here http://sites.google.com/a/iphone-dev...edirects=0&d=1
Here is a link for your firmware
The site is » felixbruns.de
When you go to Felixbruns.de you click on iPod firmware and then chooses iphone3,1 4.2.1 or whatever

[Simon]

You get it from here: Dev-Team Blog

Tutorial: iClarified - iPhone - How to Jailbreak Your iPhone 4 Using RedSn0w (Windows) [4.2.1] -Windows

or

http://www.iclarified.com/entry/index.php?enid=12946 - Mac

[Stray]

Haha we did it at the same time

[Simon]

Lol, it happens

[Stray]

Lol :-)

[ash213]

is it worth doing this? with the tethered nonsense? shall i wait till it becomes untethered?

what exactly is this tethered stuff? will it cause me hassle?

[Simon]

I did it on mine and am fine. Once setup it isnt that bad. You have to use redsnow to boot tethered everytime you turn off or reboot though. You may want to hold off until it becomes untethered if you dont like the sound of that.

[Stray]

I would wait too. Unless you don't mind using redsn0w when it turns off.

[ash213]

does sound like hassle if your out and ur phone dies....

when is untethered coming out?!

[Simon]

Dont know for sure, but I heard it may be a xmas gift

[whereswaldo]

I'd rather have a tethered boot than no JB, I went months being tethered in the blackra1n days. But this JB is only semitethered, meaning if you don't have anything installed from Cydia that affects the SpringBoard, you can boot normally

[ash213]

thing is im bound to install stuff from cydia innit!!!

[Simon]

Ya, anything worthwhile in cydia will cause it to not boot without doing it tethered.