With the most recent beta for iOS 6.1 Apple has enabled 4G LTE in the iPhone 5 for more carriers including Zain Saudi and UAE’s Du. After installing iOS 6.1 beta 2 Enable LTE will appear in Settings General Cellular if you’re using a SIM card with a supported 4G LTE network (Zain uses 1800Mhz). I managed to test Zain ...
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