Hello,
I have received an iPhone 3GS that is running iOS 5.0.1. I'd like to upgrade it to iOS 5.1.1 (because I wanna see what iOS 5 was really about before going to 6). Is there a way for me to do this without jailbreaking?
I have the official 5.1.1 ipsw, but iTunes won't authenticate the shift+restore upgrade. If I run TinyUmbrella TSS server, it will pass but then error 1600, and if I run TSS server + iReb to enter PWNED DFU, I still get error 1600.
Is there any way to get around this and install 5.1.1 on this 3GS without actually jailbreaking, only using the official firmware? Thanks in advance for any help.
Model: MC125LL
iOS: 5.0.1 (9A405)
Carrier: AT&T 11.0
Modem Firmware: 05.16.05
I have received an iPhone 3GS that is running iOS 5.0.1. I'd like to upgrade it to iOS 5.1.1 (because I wanna see what iOS 5 was really about before going to 6). Is there a way for me to do this without jailbreaking?
I have the official 5.1.1 ipsw, but iTunes won't authenticate the shift+restore upgrade. If I run TinyUmbrella TSS server, it will pass but then error 1600, and if I run TSS server + iReb to enter PWNED DFU, I still get error 1600.
Is there any way to get around this and install 5.1.1 on this 3GS without actually jailbreaking, only using the official firmware? Thanks in advance for any help.
Model: MC125LL
iOS: 5.0.1 (9A405)
Carrier: AT&T 11.0
Modem Firmware: 05.16.05