downgrade back to 5.1.1 on a iPhone 4

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Kazman

Member
Bronze
Dec 27, 2007
46
0
6
#1
I have an iPhone 4 that is jailbroken on 5.1.1, I want to restore it back to 5.1.1 non jailbroken, I have my shsh saved but I keep getting a 1600 or 1602 error codes any ideas?
 

fijiman

Contributor
Silver
Feb 13, 2011
832
64
28
UK
#2
I take it your using redsn0w....? to perform the downgrade....
I had similar problems, but managed the downgrade first time with Sn0wbreeze v2.9.6..... Good luck;)
 

Kazman

Member
Bronze
Dec 27, 2007
46
0
6
#5
I just can't seem to get past the 1600, 1602 codes no matter what I do, I have reinstalled iTunes and cleaned out my registry my phone is in DFU mode and I'm using tinyumbrella with my shsh saved and I'm using the same exact 5.1.1 firmware version that is on my phone now and I have modified the hosts file to 74.208.10.249 gs.apple.com I don't know what else to do this has always worked for me before I don't understand why it won't work now....
 

liberated

Genius
Gold
Jul 19, 2007
3,237
487
83
#6
I just can't seem to get past the 1600, 1602 codes no matter what I do, I have reinstalled iTunes and cleaned out my registry my phone is in DFU mode and I'm using tinyumbrella with my shsh saved and I'm using the same exact 5.1.1 firmware version that is on my phone now and I have modified the hosts file to 74.208.10.249 gs.apple.com I don't know what else to do this has always worked for me before I don't understand why it won't work now....
Did you read my post above? What you are trying to do is not possible yet, Redsn0w will be updated soon to allow for this. Read the information in the link I provided for a detailed explanation.
 

Kazman

Member
Bronze
Dec 27, 2007
46
0
6
#7
ok so when do you think redsn0w will be updated so I can restore back to a non jailbroken 5.1.1 phone?