How to clear the exclamation mark in the upper left corner of Samsung tablet?

According to your description, if a triangle and an exclamation mark icon appear in the upper left corner of the mobile phone screen, it means that there is an error or you need to pay attention. Please drop down the notice column to see if there are any specific precautions. If you need to cancel this icon, it is recommended to click the word "Clear" in the upper right corner of the notification bar.

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