Applicable model: Iphone8, x, 7, plus (5/6) Ios12 ios12 ios12 xs/xr/xs max, for normal, please read it in more detail 1 please put it in (New product is tighter please put in the end., no, it will not be felt) 2 if no response, please pull it out and re-insert it, use more than once again. 3 insert after, headphones and so on for about 3 seconds will be felt, for normal non-flaws. If you don 't respond the first time, unplug the cell phone again. If the above actions are confirmed, no response, please contact us. Once again, thank everyone who trusts us for placing an order 【I 'd like to】 The following is a description of any commodity issues, please make sure we communicate with us repeatedly that we will be able to handle good 3c electronic products is a problem, such as a cell phone will have a recovery problem, so please understand that do not evaluate communication directly to solve the problem