If you find that the perspective function of your quest3 can not be used, you can not view the perspective interface, please check whether the depth recognition camera is damaged, if damaged, please replace it directly, when you find that your quest3 system cannot enter or cannot view the system, please replace the depth recognition camera, when you find that quest3 can not track, can not track objects, Please replace the depth recognition camera. Note: When you disassemble quest3 to replace the depth recognition camera, please be careful not to disassemble the wire is damaged, this product disassembly need to be careful, installation need to use heat sink, we have free heat sink, installation need to cut out the gap to facilitate screw installation.