13.13 What can I do if my phone automatically sends
messages in the background to query the data usage?
Go to Settings > Data Traffic management > Package settings > Automatic calibration. If
Automatic calibration is enabled, your phone sends a message every day to query the data
usage. If you don't want such a function, set it to off.
13.14 Why does a blinking red frame appear on my screen?
You may have enabled the developer options that are hidden in the system and selected strict
mode under Settings > Developer options > Strict mode enabled. If strict mode is enabled,
the screen blinks when the app is operated for a long period of time using the main thread.
13.15 How do I set the remaining battery level to be
displayed in percentage?
Go to Settings > Battery > and touch Remaining battery percentage.
The figures are for your reference only. The actual screens may vary.
13.16 Why can't I lock my screen during phone calls and
isn't there any screen locking sound?
During the phone calls, unlocking the screen is determined by the preconfigured unlock
pattern.
If the unlock pattern is set to Huawei unlock or None, when you press the power button
during phone calls, the screen will only be turned on or off instead of locked.
If the unlock pattern is set to face, pattern, PIN, or fingerprint, when you press the power
button during phone calls, the screen is locked and turned off or turned on, but no screen
locking sound is generated.
13.17 Why are the folder icons disordered?
When you power on/off the phone, the microSD card is uninstalled and the apps installed in
the microSD card also experience the uninstallation action. The icons of the apps in the folder
are closely arranged in sequence, and the positions of the icons before uninstallation can't be
recorded. As a result, when the microSD card is uninstalled, subsequent icons automatically
fill in the positions of those icons of apps in the microSD card. When the microSD card is
installed again, the icons of the apps are displayed following the existing icons. You are
suggested to install the apps in your phone.
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