Rsim 10 plus compatibility with Newest iOS 9.0</br> The only ones with an official certificate from the manufacturer RSIM RGKNSE.</br> 100% Genuine and Brand new.</br> Sprint AT&T  T-Mobile ARE SUPPORTED.</br> For IPhone 6plus 6s 6 5s 5c 5 4s.</br></br>Product Description</br></br>Troubleshooting steps: Input the R-SIM the menu will show please choose the right operator (if you do not sure your carrier of your phone please check your Sim carrier). 1. The menu does not appear when you put the RSIM? -------- Go to Settings> run> SIM Application> Select RSIM and the menu will appear. 2. After choosing operator and can not activate the mobile and shows do not support SIM card upper left corner shows no service or full 5 false signals all the time can not skip put the activated screen and in the state of inactive all the time without any signals anyway? -------- first of all check your SIM card is normal insert SIM card to a regular phone try it and check if it can call internet or if it can show E and 3G / 4G symbol when open the cellular data in the left upper corner ?? if it's normal?? please change to the normal SIM card. Second?? after back-up the phone delete all the data and activate again. 3