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5.1.5 Why is the connection to the Wi-Fi network interrupted? ....................................................................................... 48
5.1.6 Why can't I enable Wi-Fi?........................................................................................................................................ 48
5.1.7 Why can't I disable Wi-Fi? ....................................................................................................................................... 48
5.1.8 Why can't my phone connect to a router over Wi-Fi? .............................................................................................. 48
5.1.9 Why does the download task over a Wi-Fi network stop after the screen turns off? ............................................... 50
5.1.10 Why does the Wi-Fi network speed become slow or the signal become poor? ..................................................... 52
5.1.11 Can my phone be connected to an iPhone over Bluetooth? ................................................................................... 52
5.1.12 Why doesn't the Bluetooth headset have any sound? ............................................................................................. 52
5.1.13 Why is the Wi-Fi function automatically turned on after I turn it off? .................................................................. 53
5.1.14 Why can't my phone scan any Wi-Fi hotspot? ....................................................................................................... 53
5.1.15 Why can my phone scan the Wi-Fi hotspot only near the router?.......................................................................... 53
5.1.16 Why can't my phone scan a certain hotspot but can scan other hotspots? ............................................................. 53
5.1.17 Why can't my phone scan any hotspot in other countries? .................................................................................... 53
5.1.18 Why is the confirmation button unavailable after I enter the Wi-Fi connection password? .................................. 54
5.1.19 Why can't my phone successfully connect to the hotspot due to authentication failure? ....................................... 54
connect to the hotspot? ..................................................................................................................................................... 54
5.1.21 Why does my phone fail to connect to a home Wi-Fi network? ............................................................................ 54
5.1.22 Why does my phone fail to connect to a public Wi-Fi network? ........................................................................... 54
5.1.23 Why does my phone fail to access the Internet after it is connected to the public Wi-Fi network? ....................... 54
5.1.24 Why does my phone fail to access the Internet after it is connected to a private Wi-Fi hotspot? .......................... 55
5.1.25 Why does the network speed become slow after my phone is connected to a Wi-Fi hotspot? .............................. 55
5.1.26 Why does my phone keep disconnecting and then reconnecting to the Wi-Fi network? ....................................... 55
5.1.27 What can I do if, after turning off Wi-Fi, my phone's mobile data service turns off? ............................................ 56
XX network after the screen turns on? ............................................................................................................................. 57
5.1.29 Why doesn't my phone ring for incoming calls when a Bluetooth headset is connected? ..................................... 57
5.1.30 What files can be transmitted using Bluetooth? ..................................................................................................... 57
5.1.31 How do I send a file using Bluetooth? ................................................................................................................... 57
5.1.32 Why can't I pair my phone with other Bluetooth devices? .................................................................................... 57
5.1.33 What protocols are used by Bluetooth functions? .................................................................................................. 57
5.1.34 Why does a 'Poor Wi-Fi connection status' prompt appear when I'm browsing the Internet? ............................... 58
5.1.35 Why does my phone automatically connect to another Wi-Fi network? ................................................................ 58
5.2 Why can't I access the Internet when attempting to browse web pages or download files? ....................................... 58
5.3 Why can't I use mobile data services when roaming? ................................................................................................. 58
5.4 Why is the Internet connection slow? ......................................................................................................................... 59
5.5 Why is the signal strength weak when I place my phone on a metal surface or use a metal case? ............................. 61
5.6 How do I set a static IP address for my phone to connect to a Wi-Fi network? .......................................................... 61
5.7 What are the differences between FDD and TDD? ..................................................................................................... 61
5.8 Why can't I transfer files to another Bluetooth device that I've already paired with? ................................................. 61
5.9 How do I view my phone's MAC address? ................................................................................................................. 61
April 2015
5
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