Solution 1: Check if the fixture has poor contact, readjust or replace the fixture as needed.
Solution 2: The equipment does not have a negative power supply, so it cannot be discharged to 0V, and constant current discharge at low voltage should be avoided. Please reset the test steps accordingly.
Solution 3: The issue may be caused by a faulty PIO board leading to the protection of the lower computer. It requires replacing the PIO board to restore communication. Please contact the after-sales department to resolve this problem.
