We strongly advice you to let the pro do the job. If you follow the method how this Auckland Central's Apple iPhone repair crook; you are surely going to brick your iPhone 4 for good! Please text us if you think or feel that you have been cheated by any semi-pro repair centre that killed off your Apple iPhone 4 or have your Apple iPhone 3GS motherboard stolen/switched, text us at (021) 02 555-888 for victim support group.
Below is a dangerous task which will harm your iPhone 4 and brick it for good. DO NOT do this at home as it will void your purchase warranty on the iPhone 4. The method on how to unlock iPhone 4 or rather how to kill off an iPhone 4 is in RED font. This posting is meant for academical review and research only. Author of this blog will not be liable, responsible directly or indirectly if you damaged your expensive iPhone 4.