To cut short the process of selecting the correct ipsw, you can now use shortcut to do that for you. Save you a little time, if not anything.
- Get the latest Redsnow from here
- Get your desired IPSW from here
- Extract it to your desktop. (in my case it is extracted in C:\Users\John\Desktop\redboot\redsn0w_win_0.9.6rc7b)
- Copy the ipsw to this folder to make life easy.
- U will see a shortcut in that folder “boot-ipt4g”, right click and select properties.
- Set Target as : redsn0w.exe -j -i “iPhone3,1_4.2.1_8C148_Restore.ipsw”
- Set start in : C:\Users\john\Desktop\redboot\redsn0w_win_0.9.6rc7b
- Hit ok and You are done!
- Double click “boot-ipt4g” and bam the ipsw load etc all is done for you. You know what to do next.
The above process is for iphone 4 on 4.2.1 the ipsw and directory WILL be different for you. Enjoy!