In case you have bother lining up the screw holes, double verify that you have the standoffs in the proper holes on the tray. If this is the case, be sure you remove the corresponding standoffs. https://xn--l3ca4b8epb5b.com/category/%E0%B8%84%E0%B8%A5%E0%B8%B4%E0%B8%9B%E0%B8%AB%E0%B8%A5%E0%B8%B8%E0%B8%94%E0%B8%A1%E0%B8%B2%E0%B9%83%E0%B8%AB%E0%B8%A1%E0%B9%88/