Disable airplane mode before installing Prior to installing the iPhone OS 2.0.1 update, make sure that Airplane mode is not enabled on your iPhone. Having Airplane mode turned on can result in a non-functional phone when the update is applied. You may receive the error message:
"Information for activation cannot be obtained from the iPhone"
Fortunately, you can disable Airplane mode from the emergency screen if your iPhone is put into an inactivated state by a problematic update.
"iTunes could not update the carrier settings on your iPhone" Several users are receiving the error … Read more