Downgrade without jailbroken before

[tedwu100]

Can you downgrade from 4.3.4 to 4.2.1 without the phone ever gotten jailbroken??

 

[PsstGreek]

Can you downgrade from 4.3.4 to 4.2.1 without the phone ever gotten jailbroken??

Only with the SHSH saved. Your device doesn't need to be jailbroken to save them.

 

[tedwu100]

Only with the SHSH saved. Your device doesn't need to be jailbroken to save them.

well how do u save them?

 

[awadeee]

well how do u save them?

If you didn't save SHSH blobs back when 4.2.1 was being signed, you're out of luck. Sorry!

 

[Abs_p]

well how do u save them?

Using tiny umbrella.