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Discussion in 'iPhone Tips, Help and Troubleshooting' started by xxtra, Jul 28, 2010.
if I update to the 4.0.1 version, can I still go back to 4.0?
If you saved SHSH blobs before Apple quit signing 4.0 yes.
oh, Thanks. I didn't have it saved.
No problem, I think that's the only way to do it. I upgraded to 4.0.1 myself then went back to 4.0, no difference other than the bar display/calculation as far as I noticed.
Can I restore from 4.0 to 4.0 in itunes if I mess up my phone?
No, you cannot restore any i4 or 3GS model to anything but the latest firmware thats currently out. Unless prior to that you saved your SHSH's locally or on cydias server.