- Power down your device by holding the sleep button until slide to power off appears, and slide it.
- With the phone off, hold the power button and the home button until the apple dissapears, then let go of the Sleep button and hold the power button.
- You will hear a sound on your computer and iTunes will pop up, saying the phone is in recovery mode
- Set phone aside.
- Open redsn0w.exe
- click extras
- click SHSH blobs
- click Stitch
- click IPSW
- find the IPSW you downloaded
- click local
- browse to C:\Users\(name here)\.shsh
- select the 5.1.1 IPSW
- let it do its thing
- the file it created will have a bunch of numbers infront of it, and will be located in the same place as the IPSW file
And now you have a custom IPSW with your SHSH blob.
Installing the custom IPSW:
Step 1:
Go back to TinyUmbrella and click Start TSS Server
Step 2:
Reopen iTunes
Step 3:
Right click restore
Step 4:
locate the custom IPSW file you created previously
Step 5:
Let it run its course
Once it's finished, you should have iOS 5.1.1 installed on your device! From then on you can jailbreak it again and do whatever you like.
It took me 3 days to figure this out, going through multiple versions of redsn0w, iTunes, and everything else with no luck.
Thanks to all the jailbreak developers, Apple, and everyone else for coming up with what I used.