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Who knows what the corner mark HD on my mobile phone means? How to cancel it?

Mobile phone display HD is a 4g+ HD call network. Only the latest mobile phones produced by 16 can support this function. High-definition internet access is faster, and incoming calls will not be disconnected.

If you want to remove it, you can remove the HD call hook in the phone settings.

Mobile phones with VOLTE function can now use this function for free, but some netizens feel that this function is unnecessary, but they don't know where to cancel it. Here are some ways for netizens to turn off VOLTE.

Click the setting key of the mobile phone.

Click Phone Call Settings.

Find the VOLTE switch, click Close, and the OK HD call function will be turned off, and the mobile phone notification bar will not be displayed in HD.