No value, greatly reduce local WiFi signal
Just received this device. It arrived with no user guide or install info. It looks good from the the first glace. After snap on the device to my new iPhone 5, immediately I noticed that the connection signal changed from Wifi (via my home gateway) to AT&T 4G. When I follow up, my laptop continue to use local Wifi connection, but iPhone 5 can only receive Wifi signal when I take it next to my home wireless gateway. After remove this cover, my iPhone 5 can connect to home Wifi. Useless device.
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