Can't Downgrade to 4.2.1 even with SHSH

[sbddude]

I have saved SHSH both on Cydia and TinyUmbrella.

I am trying to restore from 4.3.1 to 4.2.1, but I keep getting errors.

I have tinyUmbrella running with the server started - but it hangs at "preparing iphone for restore" and eventually stops with error 1604.

I also tried editing the hosts file manually to point to cydia, but this time it says "the device isn't eligible".

 

[Applejuiced]

You try kicking it out of recovery with TU after you get the error?

 

[sbddude]

You try kicking it out of recovery with TU after you get the error?

Yeah, it's stuck in recovery unless i update it to 4.3.1 (with unmodified hosts file).

 

[eastercat]

-are you using stock or custom firmware?
-are you putting the phone into DFU or recovery?

If you're needing a jb, create a custom firmware with pwnage. It'll put you into DFU.

 

[sbddude]

-are you using stock or custom firmware?
-are you putting the phone into DFU or recovery?

If you're needing a jb, create a custom firmware with pwnage. It'll put you into DFU.

Originally it was 4.2.1 stock, but jailbroken. I want to restore so I can start fresh. I used TU to put it in restore mode first before attempting restore.

Now I am at 4.3.1, because it wouldn't let me go back.

 

[eastercat]

I'm not sure if you need to be in DFU or restore; I'm guessing the former. D/l the ipsw again, just in case it was corrupted. If you're going to jb 4.2.1 again, create custom firmware in pwnage; you'll be prompted to DFU the phone following their instructions. Start the TU server, open itunes and press option and restore.
BTW, you said you have the 4.2.1 blob on your computer, right?

Originally it was 4.2.1 stock, but jailbroken. I want to restore so I can start fresh. I used TU to put it in restore mode first before attempting restore.

Now I am at 4.3.1, because it wouldn't let me go back.

 

[sbddude]

BTW, you said you have the 4.2.1 blob on your computer, right?

Yes, TU says it's there.

D/l the ipsw again, just in case it was corrupted.

I already did this...

create custom firmware in pwnage; you'll be prompted to DFU the phone following their instructions. Start the TU server, open itunes and press option and restore.

I'll try that way.

 

[eastercat]

I had to ask. Some people don't realize you need the 4.2.1 blob to install 4.2.1. Crazy, I know.

Yes, TU says it's there.