iPhone 4 - Technical Specifications

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Apple iPhone 4 APN settings & network compatibility in

The iPhone 4 uses a micro-SIM card on iPhone 4 devices running on a GSM network, which is positioned in an ejectable tray, located on the right side of the device. On a CDMA network, however, the phone connects to the network using an ESN. All prior models have used regular mini-SIM cards.

Apple iPhone 4 iOS 4 - Choose network mode | Vodafone UK Choose network mode - Apple iPhone 4 iOS 4. Read help info. You can select which network modes your phone can use. This setting determines the data speeds you can achieve. Follow these instructions to change network mode. Step 1 of 5. Find "Network" iPhone 4 - Technical Specifications Feb 19, 2014