11.31 When does my phone display the interactive screensaver?................................................................................... 202
11.31.1 How do I customize the existing themes on my phone? .................................................................................... 202
11.31.2 What are the characteristics of home screens on EMUI 3.0 and later? .............................................................. 203
11.31.3 What are the characteristics of home screen gestures on EMUI 3.0 and later? .................................................. 203
11.32 Why does it take a long time to turn on the screen when I answer a call after I take my phone from a dark
environment to a bright one? .......................................................................................................................................... 204
11.33 Why does the screen often freeze with a yellow frame around it.......................................................................... 204
11.34 How do I take a screenshot? ................................................................................................................................. 204
11.35 When I flick down a drop-down list menu on a screen with switches, why are the switches blurred? ................. 206
12 System settings ........................................................................................................................ 207
12.1 How do I quickly enable Huawei Music? ............................................................................................................... 207
12.2 How many languages does my phone support? How do I change the system language? ....................................... 207
12.3 What can I do if I can't use a newly installed text input method? ........................................................................... 209
12.4 How do I change the system font size? ................................................................................................................... 210
12.5 What text input methods does my phone come with? ............................................................................................. 212
12.6 What can I do if my phone can't automatically adjust its screen brightness? ......................................................... 212
12.7 What can I do if my phone can't automatically rotate its screen? ........................................................................... 212
12.8 Why can't I wake up the screen by double touching the screen? ............................................................................ 212
12.9 Why can't I open applications when I draw the corresponding letters on the screen? ............................................ 212
12.10 Why does the font size remain unchanged after I set it to large? .......................................................................... 213
12.11 Where can I draw the unlock pattern after I turn on the screen? ........................................................................... 213
12.12 Why can't I unlock my screen when I flick upwards or downwards on the lock screen? ..................................... 213
12.13 Why can't I see the application icons on the home screen after I update third-party applications? ...................... 213
12.14 How do I exit or hide developer options? ............................................................................................................. 213
12.15 How can I hide the apps such as WeChat? ............................................................................................................ 213
12.16 What is the Touchplus function? ........................................................................................................................... 214
12.17 What can I do if my phone automatically sends messages in the background to query the data usage? .............. 215
12.18 Why is there a blinking red frame on the screen? ................................................................................................. 215
12.19 Can I clear the data usage record? ........................................................................................................................ 215
12.20 How do I set the remaining battery level to be displayed in percentage? ............................................................. 216
12.21 Why can't I lock my screen during phone calls and isn't there any screen locking sound? .................................. 216
12.22 Why are the folder icons disordered? ................................................................................................................... 217
12.23 Why are the icons disordered after I unlock the screen, and why are the icons automatically recovered after I
re-arrange them? ............................................................................................................................................................. 217
12.24 Why are the icons moved to the upper part of the home screen when I uninstall certain icons on the home screen?
........................................................................................................................................................................................ 217
12.25 Why is the magazine unlock update stopped at a certain percentage? .................................................................. 217
12.26 Why is the caller ID displayed as an unknown number? ...................................................................................... 217
12.27 Why are some widgets lost when I arrange the home screen? .............................................................................. 218
12.28 Why are certain icons disappeared or overlapped? ............................................................................................... 218
12.29 Why can't I find the camera app icon on the home screen? .................................................................................. 218
12.30 Why is the screen brightness a little darker when I browse a web page?.............................................................. 218
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