If you have an Apple iPhone without a working WiFi connection and you are dependent on the Ultrasn0w software unlock, you are stuck in a sort of classic "Chicken or the egg" dilemma - you dont have an WiFi internet connection and you can't use your cellular data network until you unlock your phone by first downloading ultrasn0w via Cydia !!!
Thankfully, we have solutions to install ultrasn0w manually as blogged earlier - however, the trick shared earlier is outdated now and UltraPusher is no longer updated. We can still get things done manually as instructed ahead.