Originally Posted by
henry74918 I faced the same question as you.
And I finally got the answer. Now I can JB my iphone4.
The key point is that before you click "Just boot" to tethered your iphone., you need to click "Select IPSW" again and specify to ios 5.0 IPSW again. After that, you can success JB your iphone.
Good luck!
I followed every steps as your direction, and I got jailbreak. After installing Ultrasn0w file to unlock the the phone, the phone got stucked after rebooting with Apple Logo hangon.
My iphone is 3gs , IOS version 5.0.1
One more thing, I received a message: "Could not activate cellular data network"
If anyone know how to solve the issue, please give me your advice.
Thanks so much for your help and advice.