4. Tested to alternate the good known display S into the defective part and found it could operate normally,
it had not vertical line on display.
5. Tested to alternate the doubtful display S into the good known part and found it had vertical line on display.
◊ Refer to above test, we found display S was confirmed to be defected, vertical line on display.
6. Sent display S to supplier for deep analysis on 23-Mar-15.