We officially promise that the warranty period is 1 year from the date of delivery, in the case of non-artificial damage. You can contact us and we will provide new parts for you to replace. For quantity and regular order RMA, you can keep it first, after collecting for a period of time, record the problem, and then ship it back to us together, we will provide repair and replacement. Or if you have your own repair tech processing department and no returns are required, we can send you the repair parts.