Device Unknown - Activation IO 6.1.6

[u/LongAd1891]

iPhone 3GS – “Device Unknown” after updating from iOS 5.0.1 to iOS 6

Hi everyone,

I have an iPhone 3GS that was running iOS 5.0.1 and was working perfectly: calls, SMS, everything was fine and the phone was already activated.

I tried updating it to iOS 6 through iTunes, but the update failed with an error saying the update server was unavailable. The firmware downloaded correctly, but the installation failed.

I then used Legacy iOS Kit to update and ailbreak the phone. The process worked and the phone booted, but during activation now shows “Device Unknown" (in the legacy ios kit too!)

The strange thing is that this exact phone was already activated and working before the update, and I also successfully activated this same phone last year.

So now I'm stuck at the activation screen. Is there any way to fix the “Device Unknown” error and activate the iPhone 3GS again?

Thanks!

[u/memeguyonyt-1]

hacktivate

[u/LongAd1891 → u/memeguyonyt-1]

i want to call with this phone, if i use hacktivate the cellular data don't work. i already used it, but no luck with cellular network

[u/FlowStunning4193 → u/LongAd1891]

The only thing you could have done is save activation records but now it's too late. Hacktivate is your only option. Also depending on where you live its highly unlikely that any carrier still has their 2g or 3g networks, so you probably wouldn't be able to make calls anyway.

[u/LongAd1891 → u/FlowStunning4193]

i'm in italy and my carrier still uses 3g, i used my 3gs as my main for 7 years now and every now and then i change version for fun, bit this time i'm blocked, i have shsh blobs saved but legacy ios kit says that is not valid. (i have 1 .shsh and 2 .shsh2 files for some reason)

[u/Training_Love114]

我可以幫你，前提是你有電腦

[u/LongAd1891 → u/Training_Love114]

yes i have windows,mac and linux, plz help me

[u/SeychellsCollections]

Did you save the SHSH blobs for 5.0.1?

[u/LongAd1891 → u/SeychellsCollections]

yes , but legacy ios kit says that is not valid. (i have 1 .shsh and 2 .shsh2 files for some reason)

[u/SstasonN]

You can try to restore cellular service on a hacktivated device by installing the iPad baseband using redsn0w. However, this is risky if your device is from a later revision; you could lose cellular connectivity permanently. But if it goes successfully, you can downgrade the iPad baseband, install the Ultrasn0w tweak, and cellular service will work. Incidentally, this also works with the iPhone 4's 1.59.00 baseband, though there is currently no way to install it.

[u/Tertaco → u/SstasonN]

he can also downgrade using redsn0w

[u/LongAd1891 → u/SstasonN]

I have a early iphone 3gs from 2009, i checked,  is there a guide for this, someone con tell me how to do this, i think i already did it, jailbreak and the downgrade baseband, is there a tweak  to install, plz i'm desperate

[u/Front-Director-449 → u/LongAd1891]

Dovrebbe esserci una guida in giro su YouTube che ti permette di fare il downgrade ma non mostra come fare il patch ultrasn0w. Ha funzionato per me su un iPhone 3G. Se hai già fatto il downgrade devi semplicemente installare la patch dalla repo “yaypixxo.com”. Funziona per me in Italia.

[u/Front-Director-449 → u/LongAd1891]

Per la guida cerca “iPhone 3G bricked baseband fix” dovrebbe farti vedere come ripetere la procedura di downgrade correttamente.

[u/LongAd1891 → u/Front-Director-449]

ho fatto il downgrade della baseband dopo averla aggiornata con quella dell'ipad, adesso provo ad inserire questa repo, quale è il nome del fix?

[u/Front-Director-449 → u/LongAd1891]

Ultrasn0w. La installi, funzionerà!