How do I make iphone 4 4.2.1 SHSH, too late?

[akanoname]

Hi, I bought my iphone 4 last week, and it has ios 4.2.1. I want to make an SHSH, how do I do it? Is it too late to make one since Apple doesn't sign this version anymore? Is there a way around it? Please let me know, thanks

 

[i_kkk]

I know 2 softwares can deal with SHSH. one is i-funbox, sencond is iTong.

i-funbox.com itong.tongbu.com

 

[melwan]

Also TinyUmbrella is very reputable.