How to change China Unicom in the upper left corner of Huawei mobile phone?

About the icon for modifying the operator's text in the upper left corner of Huawei mobile phone, which is the word "Modify Unicom" you said, first find the "Settings" icon, click in, find the "Notification Bar Settings" under "All Settings", click in, find "Advanced", click in, and then enter what you want in the input field. The name in the upper left corner will change from time to time. There is another method that requires ROOT.

Permission, then the phone installs the RE Manager and opens the RE Manager. Open the etc folder. Install read and write in the upper right corner. If it is mounted, you don't need to click. Find spn-conf.xml and press and hold the file. Open it with a text editor. Next, you can see the name of the operator. If it is "China Mobile", change "China Mobile" to the text to be displayed. Change it, and then press the menu key. Save and exit. You can see it after restarting.