How can I access 'flight mode' in iphone4 without a sim card? I am attempting to unlock an iPhone4. However, my issue seems to be that the phone doesn't recognize my SIM card. The advice I got from my previous carrier is to put the phone in 'flight mode'. This seems impossible to do without a working/recognized SIM card. Is there a short cut for accessing 'flight mode'?
Depending on your iOS there are several options to do this.

One way is by jailbreaking the phone.
Using the iPhone IMEI and the Gavey SIM tool you should be able to unlock it.

use google to find out more