With i OS 4.2 Air Play feature, you will be able to stream music, photos and videos directly from your i Phone, i Pod Touch or i Pad to your Apple TV.With Air Port Express support you will be able to stream any media directly to the stereo or powered speakers around you.Note: You need itunes 7.4 or greater for FW versions 1.1.1 and 1.1.2. Note: If you intend to jailbreak to install 3rd party apps, prior to restoring, be sure that the firmware version you are using can be hacked.Note: if you need to restore a specific version of firmware onto your device, rather than click restore, hold shift (PC) or option (MAC) and click restore.
You will need to use a tool like independence (MAC) or jailbreak 1.1.2 (PC) to boot the phone out of recovery mode then your downgrade should be completed.This works for i Phone 3G, i Phone 2G, i Pod touch 1g and 2g.This guide is on how to jailbreak i Pod Touch 4G, 3G, 2G i OS 4.2.1 untethered with Greenpois0n RC5.If you are getting errors trying to restore in i Tunes, DFU mode is very likely for you. Recovery mode has a picture that says connect to i Tunes.In DFU mode, the i Phone screen backlight is not even on and the display is blank. Try adjusting the 10 seconds to be slightly less like 9 seconds, then 8, then 7.