iPhone 4S update issues

rodrigo.sfc · Apr 8, 2012

Hello all,

I just unblocked my jailbreaked iPhone 4S iOS 5.0 baseband 1.0.11 through Gevey Ultra S.
I've read that it is possible to use Gevey until iOS 5.0.1 the baseband 1.0.14 so I'd like to update to this version.
But I'm facing a lot of trouble, I've google a lot about it but so far no success!

I'm trying to update/restore using shift + Update/restore in DPU mode, using the file iPhone4,1_5.0.1_9A406_Restore.ipsw

Unchecked the option set host to Cydia on exit on Tiny Umbrella
Manually edited the hosts file
Tried iREB

I'm getting errors 3194, 1602 and sometimes 21 or 11.
I did all the troubleshoot for those errors but I'm unable to fix it.

That's why I'm here, asking you for tips on how I can do it

I thank you in advance and happy easter!

Att,
Rodrigo.

Jmills87 · Apr 8, 2012

There's no way to restore older firmware with a 4S, custom firmware requires a bootrom exploit that doesn't exist on A5+ devices. If you need to restore, you will have to restore to 5.1(which will also update your baseband).

rodrigo.sfc · Apr 8, 2012

Yes, I do.

04/08/2012 02:43:00.252 You have
saved your iPhone4S 5.0.1b (9A406) SHSH locally and the request was sent
to CYDIA. This means that CYDIA DOES
have your SHSH. Do NOT bug semaphore
about the Cydia home page showing this version.

rodrigo.sfc · Apr 8, 2012

Jmills87 said:
There's no way to restore older firmware with a 4S, custom firmware requires a bootrom exploit that doesn't exist on A5+ devices. If you need to restore, you will have to restore to 5.1(which will also update your baseband).

Oh, is that so? I have wasted a lot of time trying to do that :/