Using the Quad Lock iPhone 11 Pro Max case is easy. First, just slip your iPhone 11 Pro Max into the case. When you want to use the mounting system, align the case with the mount and use the dual - stage Lock. It should snap in place easily, no need to use too much force. To remove it, follow the technique of gently detaching it as shown in the testing. As for care, you can wipe the case with a soft, dry cloth regularly to keep it clean. Avoid using harsh chemicals or abrasive materials as they might damage the case's soft - touch material and the TPU outer shell. Also, make sure the case is dry before using wireless charging to prevent any potential issues.