Sometimes it's useless to be in a hurry, but I don't know what the problem is. So today's Sihai network editor is going to teach you how to make your mobile phone free of card.
Method / step
As shown in the figure, find the 'Settings' icon on the mobile phone.
Then click on 'more system settings'.
Here, we can choose 'restore factory settings'. ‘
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As shown in the figure, this is redundant files and software. You can check it and click "restore factory settings".
As shown in the figure, click "confirm and restart", wait a few minutes, and the phone will clean up all the junk files.