Attention: 1. Waterproof Rubber O-ring: When installing, please make sure O-ring is aligned and fixed in the solt correctly 2.Speaker: This Case is sealed with waterproof film, when using, please set your phone's voice to maximum. 3. Mute button: Because this is a 100% wateproof case, mute button is fully sealed, so it might influence mute button's usage, thus we suggested to use Assistive Touch with your phone. If your phone has no Assistive Touch, please set it per below steps: Steps:"Settings"--"General" --"Accessibility"--"Assistive Touch":Open "Assistive Touch" Potential problem: 1. Popup-menu is not sensitive: Because it has a nanometer waterproof layer around the Home button, when operating Popup-menu, please touch the screen by a little bigger power. 2. What should I do if case is leaking? In usual, if the case is installed correctly, it will not leak. when receiving the case, please test it before putting your phone into the case. After confirming case is not leaking, then install the case step by step according to instruction. Below is the detail method of how to test whether the case leak or not: A: Putting a tissue into the case B: Installing O-ring well according to instruction and fix all the screws C: Putting case underwater for some times D: Taking out the case from water and dry the water in case's surface by a tissue E: Unscrew all the screws and check whether the tissue is wet 3. Influence phone's signal: This case is made of premium metal, metal has a little influence for signal original, but please don't worry about it, it will not influence your phone's normal use
