2.1 Confirm whether the CR-10 SE model is selected when slicing.
2.2 There might be issues with the thermistor or the hot end heat block, possibly due to poor wire contact or module wear.
3.1 Use the official slicing software, select the correct CR-10 SE model, and test using the random gcode file.
3.2 Replug the thermistor wire.
After checking the above steps, if the problem still cannot be solved, please contact after-sales service cs@creality.com