10.22 Where are the multimedia message attachments saved? ....................................................................................... 152
10.23 How do I configure email settings? ...................................................................................................................... 152
10.24 Can I view emails when no Internet connection is available on my phone? ......................................................... 153
10.25 How do I synchronize contacts and calendar events? ........................................................................................... 153
10.26 Why can't I change the ringtone and vibration settings of my email? .................................................................. 153
10.27 How can I set a different ringtone for the messages? ........................................................................................... 154
10.28 How do I preview new messages on the notification panel? ................................................................................ 155
10.29 Can I restore deleted messages? ........................................................................................................................... 155
10.30 Is there any restriction on the email attachment size? ........................................................................................... 155
10.31 Why doesn't my phone play any tone?.................................................................................................................. 155
10.32 How can I add a message signature? .................................................................................................................... 156
10.33 How do I hide the sender information when forwarding a message? ................................................................... 157
10.34 How do I send contact information using the multimedia message? .................................................................... 157
10.35 How can I block harassment messages? ............................................................................................................... 157
10.36 How do I remove an email account? ..................................................................................................................... 158
10.37 How can I view the contacts on the blacklist? ...................................................................................................... 158
10.38 Can I change the Message ringtone?..................................................................................................................... 159
10.39 What can I do if I can't send or receive multimedia messages? ............................................................................ 161
11 Networking and data sharing ............................................................................................... 162
11.1 Why does the 4G icon appear very briefly and then disappear after I have inserted a 2G/3G SIM card? .............. 162
11.2 Why is the signal bar showing no signal? ............................................................................................................... 162
11.3 Why can't I access the Internet when attempting to browse web pages or download files? ................................... 162
11.4 Why can't I use mobile data services when roaming? ............................................................................................. 163
11.5 Why is the Internet connection slow? ..................................................................................................................... 163
11.6 Why is the signal strength weak when I place my phone on a metal surface or use a metal case? ......................... 163
11.7 Why can't I access the Internet or use mobile data services? .................................................................................. 164
II Other solutions ......................................................................................................................... 164
11.8 Why does my phone have no signal after I take it out from my pocket and become normal after I restart it? ....... 164
11.9 Why can't I access 4G when using a 4G SIM card? ................................................................................................ 164
11.10 Why is the signal unstable? ................................................................................................................................... 165
11.11 Why is there no signal suddenly? .......................................................................................................................... 165
11.12 How do I share a network and enable a Wi-Fi hotspot? ........................................................................................ 165
11.13 How do I set a static IP address for my phone to connect to a Wi-Fi network? .................................................... 166
11.14 How do I set the modem function of my phone to connect to the computer? ....................................................... 166
11.15 Does my phone support SIM card hot swapping? ................................................................................................. 166
11.16 Why is my daily data usage refreshed to my monthly data limit after my data usage exceeds the monthly limit?
........................................................................................................................................................................................ 166
11.17 Why can't I access LTE services when using an LTE phone? ............................................................................... 167
11.18 How can I save my data usage? ............................................................................................................................ 167
11.19 How do I set my phone not to automatically recover the mobile network connection when the Wi-Fi connection is
interrupted? ..................................................................................................................................................................... 167
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