and it must be under normal use. (2) If the item does not work within the warranty period under normal use we can exchange a one, but the buyer need to pay for the freight of the second time delivery. (3) If the item does not work within the warranty period for abnormal use, we will not exchange a one for you. Feedback (1) We appreciate you leave 5 star positive feedback for us upon receipt of your item. (2) If your item hasn't arrived or isn't as described and want to leave a negative feedback, contact us first. Give us a chance to make things right for you, and we will do our best to assist you solve any issue. Other Reminders Please be aware that many items have the same part number and they might have Different Appearance, Screw Alignments & Pin Connectors. You should make sure that you remove your current