Do you live in a area where the GSM signal is stronger than the 3G / UMTS signal? Are you tired of when your iPhone 3G / 3GS always use the EDGE network instead of the 3G network? Then this guide if for you. This guide helps you to force your iPhone 3G and 3G to the 3G / UMTS mode only. Even if you have a weak 3G signal the phone will not switch to 2G / EDGE network!
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