WITHOUT letting go of POWER, now hold HOME button for 10 secs, (both held). Let go of POWER, continue to hold HOME button until Itunes recognizes phone (about 10-20 seconds) 5. After that, BEFORE you sync anything to the phone, jailbreak it. restore it with another computer or try unplug your cable and move it to the back, u can restore to 2.1 or 2.2, but do remeber, using quickpwn will update your baseband, it will kill the chance for software unlock in the future, and also stop the fuction of sim adaptor if u update to 2.2, good luck.Upgrading in i Tunes on a jailbroken device has become rather complicated in order to avoid problems.Every i Phone user would be happy to upgrade his or her device to a better and latest i OS.
Image : Install i OS 9 on Jailbroken i Phone Well this is not surprising and is expected in case of jailbroken devices, as most of the modern jailbreaks like Tai G do not work well with OTA updates.Just hook your i Phone up to your computer and tap the “upgrade” button and wait. Say you are running 2.0.2 and have a lot of Cydia apps installed.You want to upgrade but you don’t want to lose these apps.To get this upgrade, you are required to download a suitable app. Using Pangu jailbreak app, you can Upgrade Jailbroken i Phone to i OS 10 as outlined below. On your i Phone, launch Safari web browser with i OS 10 firmware running. You need to ensure that you are connected to the computer which has i Tunes. The following steps show how you can extract data from your i Phone by using i Cloud backup. i Cloud will successfully backup your data within a very short time.You always have to ensure that your battery has enough power while the backup process is in progress.
NOTE: They do warn that you may not be able to unlock the phone at a later date, if you only use AT&T I would not care. Then Steve Jobs appears before I've counted 5 seconds, and i Tunes recognizes the i Phone before I've even pressed the Home button. I understand I won't be able to unlock this phone because I'm upgrading using Quick Pwn, which is fine. I'm going to get my work laptop and try from Windows. I am having the same problem after upgrading to 2.2, only difference is I get error code 6 most of the time and if it's in DFU mode with custom firmware I get 1600. Still nothing can't restore it and boots to the steve jobs restore screen.