Fortunately, the iPhone development team released the PwnageTool application, which allows you to update the main console without touching the baseband firmware. If you do not have a SIM card from another network or you do not know the original network, you can use it. This service helps you check your iPhone carrier and land verification for iPhone 2G. Last month I upgraded to 2.2.1. I had a small problem in the phone last week, so I restored it again with fw 2.2.1. Currently, 15 minutes ago, I updated to 3.0 without any problems. Please note that all Cydia apps will be removed during the recovery process. I do not know if a backup before the upgrade would prevent this, I think the apps would be resorable. Then I did the above. On the locked status, do not connect the phone to the computer. Just open itune. How To Unlock Huawei Phone With Google Account. then connect the phone. Jailbreak And Unlock Iphone 4s Sprint. as soon as you connect. Click the power button, hold it down and press the Home button twice and hold both buttons together. Do not release the buttons to restore the mode. If that does not work, try again first. Sometimes it will connect for a few seconds, but disconnect before you can open a new program and sometimes there will not be any wifi connections at all. I downloading iTunes 9.0.2 now. I think I put it into recovery mode somehow, as it only shows plugged in the iTunes icon and nothing else. No wrongdoing, but if you google it, you would get the following: Again, this is the first link, if you google it: It also sticky on the top of this page with information on how to do it. For others who have no problem with WiFi, I might suggest using the jailbreaking method I used before blackra1n, if you really are out of the options to get Bootneuter to do their job. Every time after the upgrade, all of my downloaded programs that have already saved the data have disappeared and I have to resynchronize all the programs where the program will be like the new program i lose all of the data.