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1. Pada iPhone 4S Anda, terhubung ke jaringan WiFi.
2. Peluncuran website berikut menggunakan web browser Safari.
http://www.unlockit.co.nz3. Tap on Continue > Custom APN.
4. Choose Country and Carrier and then tap Create Profile. For this example I chose country as ID and Telkomsel.
5. Tap Install and confirm installation.
6. Reboot iPhone Anda dan Anda selesai!
Demikian tip nya semoga bermanfaat.