4.2.1 to 4.1 with tiny umbrella??

[jredecop]

Will this work. My shsh for 4.1 is on file. From what I understand it won't downgrade my baseband but I'm on AT&T so that doesn't matter. Thanks

 

[PsstGreek]

Will this work. My shsh for 4.1 is on file. From what I understand it won't downgrade my baseband but I'm on AT&T so that doesn't matter. Thanks

Yes it will work. Before restoring your iPhone back to 4.1, hit run TSS Server.

 

[jredecop]

Yes it will work. Before restoring your iPhone back to 4.1, hit run TSS Server.

Awesome! Thanks. Miss my jb. Do I just hit enter recovery once I've plugged my phone in and then run tss server once it's in recovery? And from there select 4.1 in iTunes of course.

 

[PsstGreek]

Awesome! Thanks. Miss my jb. Do I just hit enter recovery once I've plugged my phone in and then run tss server once it's in recovery? And from there select 4.1 in iTunes of course.

Yep. Your iPhone first needs to be in DFU mode to restore back using shsh.

 

[dgstan]

I'll be doing the same thing tonight, except going from 4.0 to 4.1. I'm using this guide: http://modmyi.com/forums/general/725672-how-using-tiny-umbrella-update-restore.html