jailbreak/unlock iphone 4.2.1

[torontobluejays]

Hi Guys
i have a 4.2.1 iphone 4. i wanted to jailbreak and unlock it. can somebody please help me ? is the unlock out for this version?
please help

thanks

 

[Supra1jz]

Well there is a jailbreak with green poison but if your baseband is not on 1.59 then there is not unlock for any of the baseband 2.10,3.10 and 4.10.

 

[Ipheuria]

Yeah why don't you tell us what baseband you're running? There are lots of tools for 4.2.1 but to unlock is going to be the real question.

 

[torontobluejays]

baseband

my baseband is 3.10.01

 

[Ipheuria]

There is no unlock for that baseband, and I wish I could give you a hint of when it might even be available.

 

[torontobluejays]

redsnow/greenpoison

should i jailbreak it using redsnow or greenpoison? is one more stable that the other?