This is applicable to all the realme devices.
Simultaneously press and hold the power button and the volume down button for 2 seconds to take a screenshot. If you cannot use this method to take a screenshot, you can:
1. Replace the different screen capture methods, check whether the screenshot function is normal.
2. Use the power button or the volume down button alone to see if the button function is normal.
3. Enter the file management to view the remaining space of the phone, to eliminate the lack of space.
If the space is enough, other screenshot methods can be screenshots normally, you can back up the data brush to see if it is resolved. If the button function is abnormal, you can go to the service center for processing.