iPhone 4 won't restore..iTunes errors, boot loop?

[IBradMac]

I have been pulling my hair out trying to restore my iPhone. I have the latest version of Tiny Umbrella, and the latest version of iTunes.

My current firmware is 4.1 and I have tried to restore 4.1 factory and also the latest update from apple. Neither has worked.

When I try to restore I get several different error codes including 1013, 21, and a couple of others I can't quite remember.

What am I doing wrong here?!

 

[Myzhi]

In TU, do you have 4.1 SHSH saved? Inside TU, click in the phone you are trying to restore, and in the middle box, is 4.1 listed?

 

[IBradMac]

In TU, do you have 4.1 SHSH saved? Inside TU, click in the phone you are trying to restore, and in the middle box, is 4.1 listed?

Yep. Sure do. I tried this and finally, JUST now was able to update to 4.2. Now I need to go back to 4.1. How do I do that? I've never downgraded?

 

[PsstGreek]

Yep. Sure do. I tried this and finally, JUST now was able to update to 4.2. Now I need to go back to 4.1. How do I do that? I've never downgraded?

In TinyUmbrella hit "start tss server" > close/reopen iTunes > put iphone in DFU mode > restore via 4.1 ipsw.

 

[IBradMac]

I don't have to edit any hosts files or anything like that beforehand?

 

[PsstGreek]

I don't have to edit any hosts files or anything like that beforehand?

You can either edit the host files or use TinyUmbrella TSS server.

 

[IBradMac]

You can either edit the host files or use TinyUmbrella TSS server.

Both ways didn't work.

 

[Myzhi]

Both ways didn't work.

Try different USB cable, USB port, shutdown security programs, and if all else fails, try another computer.

 

[IBradMac]

Try different USB cable, USB port, shutdown security programs, and if all else fails, try another computer.

Since my hashes are not saved on another computer I really don't see how I could use a different one.

 

[Myzhi]

Since my hashes are not saved on another computer I really don't see how I could use a different one.

The hashed are also saved on Cydia when you use Tinyumbrella to save them. Thus, on another computer, just use Tinyumbrella to request and save them again from Cydia.

 

[IBradMac]

I used a different computer to downgrade. I don't know how I did it but it worked. weird.

 

[Myzhi]

I used a different computer to downgrade. I don't know how I did it but it worked. weird.

Its something on your other computer, hardware or software. If you think about it, every computer could be unique base on what hardware and software are install in it.